Billie Lee Turner

Billie Lee Turner 's AcademicInfluence.com Rankings

Billie Lee Turner

Biology

#4149

World Rank

#6232

Historical Rank

#1601

USA Rank

Botany

#96

World Rank

#512

Historical Rank

#34

USA Rank

biology Degrees

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Biology

Billie Lee Turner 's Degrees

PhD Botany University of California, Berkeley
Masters Botany University of California, Berkeley
Bachelors Botany University of California, Berkeley

Why Is Billie Lee Turner Influential?

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According to Wikipedia, Billie Lee Turner was an American botanist and professor of botany at the University of Texas at Austin where he also directed the botany research programme and herbarium. He died from COVID-19 in Round Rock, Texas, during the COVID-19 pandemic in Texas.

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Billie Lee Turner 's Published Works

Number of citations in a given year to any of this author's works

Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author

Published Works

The Biology and Chemistry of the Compositae (1978) (626)
Chemotaxonomy of the Leguminosae (1971) (210)
Pollen morphology in the Compositae and in morphologically related families (1977) (188)
Comparative farming systems (1987) (175)
Systematic Implications from Electron Microscopic Studies of Compositae Pollen-A Review (1966) (131)
NATURAL HYBRIDIZATION AMONG FOUR SPECIES OF BAPTISIA (LEGUMINOSAE) (1963) (101)
CHROMOSOME NUMBERS IN THE COMPOSITAE. IV. NORTH AMERICAN SPECIES, WITH PHYLETIC INTERPRETATIONS (1961) (86)
METHODS OF PRESENTATION OF CRUDE BIOCHEMICAL DATA FOR SYSTEMATIC PURPOSES, WITH PARTICULAR REFERENCE TO THE GENUS BAHIA (COMPOSITAE) (1962) (80)
NEW TECHNIQUES IN ANALYSIS OF COMPLEX NATURAL HYBRIDIZATION. (1962) (76)
The betacyanins and their distribution (1963) (68)
DISTRIBUTION OF KRANZ SYNDROME AMONG ASTERACEAE (1975) (67)
DISTRIBUTION OF CANAVANINE IN THE FAMILY LEGUMINOSAE AS RELATED TO PHYLETIC GROUPINGS (1960) (64)
Chromosome numbers in the Compositae. VI. Additional Mexican and Guatemalan species (1962) (60)
CHROMOSOME NUMBERS IN SOUTH AMERICAN COMPOSITAE (1979) (58)
Chemosystematic and numerical studies of the natural populations of Juniperus ashei Buch. (1970) (54)
CHROMOSOME NUMBERS IN THE COMPOSITAE. X. NORTH AMERICAN SPECIES (1966) (50)
Chromosomal relationships and taxonomic considerations in the genus Cassia. (1960) (49)
QUANTITATIVE STUDY OF CLINAL VARIATION IN Juniperus virginiana USING TERPENOID DATA. (1969) (48)
CHROMOSOME NUMBERS IN THE LEGUMINOSAE II: AFRICAN SPECIES, INCLUDING PHYLETIC INTERPRETATIONS (1959) (48)
THE USE OF DISC ELECTROPHORESIS OF PLANT PROTEINS IN SYSTEMATICS (1966) (48)
Distribution of canavanine in the plant kingdom (1967) (47)
Chromosome Numbers in the Compositae. VIII. Mexican and Central American Species (1964) (47)
A Biosystematic Study of the Phlox cuspidata-Phiox drummondii Complex' (1962) (46)
CHROMOSOME NUMBERS IN THE LEGUMINOSAE. I. (1956) (44)
Leguminosae of the United States. III. Subfamily Papilionoideae: Tribes Sophoreae, Podalyrieae, Loteae. (1982) (44)
SEGREGATION AND RECOMBINATION OF CHEMICAL CONSTITUENTS IN A HYBRID SWARM OF BAPTISIA LAEVICAULIS × B. VIRIDIS AND THEIR TAXONOMIC IMPLICATIONS (1959) (42)
ON SPECIFIC SIEVE‐TUBE PLASTIDS IN CARYOPHYLLALES: FURTHER INVESTIGATIONS WITH SPECIAL REFERENCE TO THE BATACEAE (1971) (40)
The Bases of Angiosperm Phylogeny: Chemotaxonomy (1975) (39)
CHROMOSOME NUMBERS IN THE COMPOSITAE. VII. ADDITIONAL SPECIES FROM THE SOUTHWESTERN UNITED STATES AND MEXICO (1963) (37)
CHROMOSOME NUMBERS IN COMPOSITAE. XI. PERUVIAN SPECIES (1967) (35)
The Legumes of Texas (1961) (35)
Chromosome numbers in the Compositae. V. Mexican and Guatemalan Species (1961) (34)
Plant systematics and phylogeny (1967) (34)
Phylogenetic and Evolutionary Implications of Interspecific Chloroplast DNA Variation in Krigia (Asteraceae-Lactuceae) (1992) (33)
CHROMOSOME COUNTS OF LATIN AMERICAN COMPOSITAE. (1986) (33)
Chemical documentation of allopatric introgression in Juniperus. (1978) (32)
A preliminary cladistic analysis of the genus Vernonia (Vernonieae: Asteraceae ) (1990) (32)
PERSPECTIVES IN CHEMOTAXONOMY. (1963) (31)
CHROMOSOME NUMBERS IN THE COMPOSITAE. XII. AUSTRALIAN SPECIES (1970) (30)
A TAXONOMIC STUDY OF THE GENUS AMPHICARPAEA' (LEGUMINOSAE) (1964) (30)
INFRASPECIFIC VARIATION OF SESQUITERPENE LACTONES IN AMBROSIA PSILOSTACHYA (COMPOSITAE) (1968) (29)
CHROMOSOME NUMBERS IN THE LEGUMINOSAE. III. SPECIES OF THE SOUTHWESTERN UNITED STATES AND MEXICO (1960) (29)
EVOLUTIONARY IMPLICATIONS OF INTRASPECIFIC CHLOROPLAST DNA VARIATION IN DWARF DANDELIONS (KRIGIA; ASTERACEAE) (1992) (29)
POLLEN WALL ULTRASTRUCTURE AND ITS BEARING ON THE SYSTEMATIC POSITION OF BLENNOSPERMA AND CROCIDIUM (COMPOSITAE) (1966) (28)
Phylogenetic Relationships within the Tageteae (Asteraceae) Based on Nuclear Ribosomal ITS and Chloroplast ndhF Gene Sequences (2003) (28)
New species and combinations in Vernonia sections Leiboldia and Lepidonia (Asteraceae), with a revisional conspectus of the groups (1981) (27)
CHEMOSYSTEMATICS: RECENT DEVELOPMENTS (1969) (27)
Chemosystematic Data: Their Use in the Study of Disjunctions (1972) (25)
SYSTEMATIC SIGNIFICANCE OF LUPINE ALKALOIDS WITH PARTICULAR REFERENCE TO BAPTISIA (LEGUMINOSAE) (1967) (25)
ELECTROPHORETIC MOBILITIES OF FORMIC AND GLUTAMIC DEHYDROGENASES IN THE FABACEAE: A SYSTEMATIC SURVEY (1967) (24)
Applications of Paper Chromatography to Systematics: Recombination of Parental Biochemical Components in a Baptisia Hybrid Population (1959) (24)
Chromosome Numbers and Their Phyletic Interpretation (1994) (22)
A Maya Dam in the Copan Valley, Honduras (1979) (22)
Germacranolides from Eupatoriastrum nelsonii (1985) (21)
CHEMICAL INVESTIGATIONS OF THE BATIDACEAE: BETAXANTHINS AND THEIR SYSTEMATIC IMPLICATIONS (1964) (20)
CHROMOSOME NUMBERS IN MEXICAN ASTERACEAE (1973) (18)
SEROLOGICAL STUDIES IN BAPTISIA AND CERTAIN OTHER GENERA OF THE LEGUMINOSAE. (1965) (18)
Chromosome numbers in the Compositae II Meiotic counts for fourteen species of Brazilian Compositae (1960) (18)
Clutch size in the Compositae (1977) (18)
Guaianolides and heliangolides from Hymenopappus newberryi (1984) (18)
Taxonomy Of Thermopsis (Fabaceae) In North-America (1994) (18)
A CYTOTAXOXOMIC SURVEY OF MELAMPODIUM (COMPOSITAE‐HELIANTHEAE) (1962) (17)
Synopsis of Mexican and Central American species of Stachys lLamiaceaer (1994) (17)
Chromosome numbers in Mexican and Guatemalan Compositae (1962) (17)
Biogeography, diversity, and endangered or threatened status of Mexican Asteraceae. (1993) (17)
Chromosome numbers in the Compositae-III. Certain Mexican species (1961) (16)
A GENERIC CONSPECTUS OF THE SUBTRIBE PERITYLINAE (ASTERACEAE‐HELENIEAE) AND REASSESSMENT OF ITS TRIBAL POSITION (1974) (16)
Taxonomic overview of Stemodia (Scrophulariaceae) for South America (1993) (15)
Taxonomic overview of Stemodia (Scrophulariaceae) for North America and the West Indies (1993) (14)
RECE NSION OF THE MEXICAN SPECIES OF SECTION ULIGINOSAE OF SALVIA (LAMIACEAE) (2009) (14)
RECENSION OF SALVIA SECT. FARINACEAE (LAMIACEAE) (2008) (14)
A Revision Of Malvaviscus (Malvaceae) (1993) (14)
Flora of Guatemala (1977) (13)
Sesquiterpene lactones from two newly-described species of Vernonia: V. jonesii and V. pooleae (1984) (13)
Confirmation of a Clinal Pattern of Chemical Differentiation in Juniperus virginiana from Terpenoid Data Obtained in Successive Years (1973) (13)
Systematics of Palafoxia (Asteraceae: Helenieae) (1976) (13)
Systematic implications of chloroplast DNA variation in the subtribe Ambrosiinae (Asteraceae: Heliantheae) (1995) (13)
Nutlet sculpturing inScutellaria sect.Resinosa (Lamiaceae) and its taxonomic utility (1996) (12)
Chromosome numbers of Peruvian Compositae (1982) (12)
USE OF VARIETY AND SUBSPECIES AND NEW VARIETAL COMBINATIONS FOR STYRAX PLATANIFOLIUS (STYRACACEAE) (2000) (12)
Floristics and palaeofloristics of Asia and eastern North America (1973) (12)
A new species of Lupinus (Fabaceae) from Oaxaca, Mexico: A shrub or tree mostly three to eight meters high (1995) (11)
FINE STRUCTURE OF PETROBINAE (COMPOSITAE-HELIANTHEAE) POLLEN WALLS' (1969) (11)
NEW SPECIES NAMES AND COMBINATIONS IN MEXICAN BIDENS ASTERACEAE COREOPSIDEAE (1990) (11)
Chromosome numbers of some Brazilian Leguminosae (1961) (11)
Two new species of Lamourouxia lScrophulariaceaer from Mexico (1993) (11)
DOCUMENTED CHROMOSOME NUMBERS 1992: 2. MISCELLANEOUS U.S.A. AND MEXICAN SPECIES, MOSTLY ASTERACEAE (1992) (11)
Two New Gypsophilous Species of Gaillardia (Compositae) from Northcentral Mexico (1972) (10)
Synopsis of the genus Onosmodium (Boraginaceae) (1995) (10)
Taxonomy of Selinocarpus and Ammocodon (Nyctaginaceae) (1977) (10)
Chromatographic Validation of Two Morphologically Similar Hybrids of Different Origins (1962) (10)
Jaimehintonia (Amaryllidaceae: Allieae), a New Genus from Northeastern Mexico (1993) (10)
Meiotic Chromosome Numbers in Texas Species of the Genus Coreopsis (Compositae-Heliantheae) (1960) (10)
Taxonomic treatment of Monarda (Lamiaceae) for Texas and Mexico (1994) (9)
TAXONOMY AND NOMENCLATURE OF THE ERYSIMUM ASPERUM-E. CAPITATUM COMPLEX (BRASSICACEAE) (2006) (9)
Texas species of Ruellia (Acanthaceae) (1991) (9)
Chromosome numbers in the genus Kra-meria: Evidence for familial status (1958) (9)
AN OVERVIEW OF THE GENUS PYRRHOPAPPUS (ASTERACEAE: LACTUCEAE) WITH EMPHASIS ON CHLOROPLAST DNA RESTRICTION SITE DATA (1990) (9)
Taxonomic overview of Eustoma (Gentianaceae) (2014) (9)
Recension of Mexican species of Salvia sect. Standleyana (Lamiaceae) (2011) (9)
Synoptical study of the genus Macromeria (Boraginaceae) (1994) (8)
Chloroplast DNA study of the generaAmbrosia s.l. andHymenoclea (Asteraceae): Systematic implications (1995) (8)
CHROMOSOME NUMBERS AND GEOGRAPHIC DISTRIBUTION OF LINDHEIMERA, ENGELMANNIA, AND BERLANDIERA (COMPOSITAE.HELIANTHEAE-MELAMPODINAE) (1956) (8)
A COMPARISON OF THE NINHYDRIN POSITIVE AND PHENOLIC SUBSTANCES OF PAROTOID GLAND SECRETIONS OF CERTAIN BUFO SPECIES AND THEIR HYBRIDS (1961) (8)
DOCUMENTED PLANT CHROMOSOME NUMBERS 1989: 1. CHROMOSOME NUMBERS IN MEXICAN ASTERACEAE WITH SPECIAL REFERENCE TO THE TRIBE TAGETEAE (1989) (8)
Chromosome numbers of Dyssodia (Compositae-Tagetinae) and phyletic interpretations (1962) (8)
Plant chemosystematics and phylogeny. (1967) (8)
Northern Mexican species of Schrankia (Mimosaceae) transferred to Mimosa (1994) (8)
HENRICKSONIA (ASTERACEAE-COREOPSIDINAE), A NEWLY DISCOVERED GENUS WITH A PALEACEOUS PAPPUS FROM NORTH- CENTRAL MEXICO' (1977) (8)
A new species of Salvia (Lamiaceae), from Guerrero, Mexico (2008) (8)
Synopsis of section Axillaris of Salvia (Lamiaceae) (1996) (7)
Revisionary treatment of the genus Sinclairia, including Liabellum (Asteraceae, Liabeae) (1989) (7)
Taxonomic study of Machaeranthera section Machaeranthera and Hesperastrum (Asteraceae) (1987) (7)
MACHAERANTHERA RESTIFORMIS (ASTERACEAE) A BIZARRE NEW GYPSOPHILE FROM NORTHCENTRAL MEXICO (1973) (7)
Revisionary study of the genus Allionia (Nyctaginaceae) (1994) (7)
Taxonomic study of the Stachys coccinea (Lamiaceae) complex (1994) (7)
STROTHERIA (COMPOSITAE-TAGETEAE) A NEW MONOTYPIC GENUS FROM NORTH-CENTRAL MEXICO' (1972) (7)
TAXONOMY OF EUTETRAS (COMPOSITAE- HELENIEAE)' (1966) (6)
Pseudoguaianolides and sesquiterpene glucoside from Gaillardia coahuilensis (1988) (6)
Meiotic chromosome counts for 12 species of texas compositae (1959) (6)
Organic Matter Chemistry Drives Carbon Dioxide Production of Peatlands (2021) (6)
Salvia booleana (Lamiaceae), a new species from northeastern Mexico (1995) (6)
Three new species of Heterotheca (Asteraceae--Astereae) from northern Mexico (1984) (6)
TRAINING OF SYSTEMATISTS FOR THE SEVENTIES (1971) (6)
Texas species of Schrankia (Mimosaceae) transferred to the genus Mimosa (1994) (6)
A new species of Salvia (sect. Caducae) from Guerrero, Mexico (1996) (5)
A new species of, and observations on, the genus Smallanthus (Asteraceae-Heliantheae) (1988) (5)
CHEMOSYSTEMATICS AND ITS EFFECT UPON THE TRADITIONALIST (1977) (5)
Taxonomic study of Chrysanthellum (Asteraceae, Coreopsideae) (1988) (5)
Taxonomic overview of Gilia, sect. Giliastrum (Polemoniaceae) in Texas and Mexico (1994) (5)
RECE NSION OF THE GENUS MALACOMELES (ROSACEAE) (2011) (5)
Taxonomy of the genus Aphanostephus (Asteraceae-Astereae) (1984) (5)
The Texas species of Centaurium (Gentianaceae) (1993) (5)
RECE NSION OF THE MEXICAN SPECIES OF SALVIA (LAMIACEAE), SECT. PENINSULARIS (2010) (5)
On cavities in spines of Compositae pollen ― a taxonomic perspective. Reply (1984) (5)
New names in Dermatophyllum (Fabaceae) (2012) (5)
A new species of Melampodium (Asteraceae-Heliantheae) from Oaxaca, Mexico (1988) (5)
New Taxa in Verbesina (Sect. Verbesinaria) from North-Central Mexico (1982) (5)
New taxa, new combinations, and nomenclatural comments on the genus Acourtia (Asteraaceae, Mutisieae) (1993) (5)
A new species of Melampodium (Asteraceae, Heliantheae) from Jalisco, México (1993) (5)
Berylsimpsonia (Asteraceae: Mutisieae). A new genus of the Greater Antilles (1993) (5)
PLANT SYSTEMATICS : BEGINNINGS AND ENDINGS (1998) (5)
Two new species of Drymaria (Caryophyllaceae) from gypseous soils in northern Nuevo Leon, Mexico (1995) (5)
New names and combinations in New World Wedelia (Asteraceae, Heliantheae) (1992) (5)
New species and combinations in Lasianthaea lAsteraceaec Heliantheaer (1988) (4)
Spring Flora Of The Dallas Fort Worth Area, Texas (2012) (4)
Systematics of the Rhynchosia senna Complex (Fabaceae) (2011) (4)
Taxonomy of florestina (Helenieae, Compositae) (1963) (4)
Agricultura intensiva en las tierras bajas mayas ; una lección del pasado (1980) (4)
Molecular phylogeny ofIva (Asteraceae, Heliantheae) based on chloroplast DNA restriction site variation (1995) (4)
Revision of the genus Piptanthus (Fabaceae: Thermopsideae) (1980) (4)
Revisionary study of Lasiarrhenum (Boraginaceae) (1994) (4)
Chloroplast DNA variations in sect. Cyclachaena of Iva (Asteraceae) (1995) (4)
A NEW SPECIES OF ANULOCAULIS (NYCTAGINACEAE) FROM SOUTHERN COAHUILA, MEXICO (1993) (4)
A new species of Flaveria (Asteraceae, Helenieae) from Oaxaca, Mexico (1995) (4)
A new species of Satureja (Lamiaceae) from Nuevo Leon, Mexico (1993) (4)
A new gypsophilic Sophora (Leguminosae) from northcentral Mexico and adjacent Texas (1972) (4)
Revision of the United States Species of Neptunia (Leguminosae) (1951) (4)
Taxonomic study of the scapiform species of Acourtia (Asteraceae-Mutisiieae) (1978) (4)
Hymenopappus carrizoanus (Asteraceae-Helenieae), a new species from the Carrizo sands of central Texas (1989) (4)
Submergence of the genera Asanthus and Dyscritogyne within Steviopsis (Asteraceae, Eupatorieae), including new combinations (1988) (4)
Comments upon, and new combinations in, Heliopsis (Asteraceae, Heliantheae) (1988) (4)
Taxonomic status of Barroetea glutinosa (Asteraceae, Eupatorieae) and its allies: morphological evidence for the transfer of Barroetea to Brickellia (1991) (4)
An overview of the North American species of Mendora (Oleaceae) (1991) (4)
CYTOPHYLETIC ANALYSIS OF HYMENOXYS ODORATA: A RECAPITULATION (1963) (4)
A NEW GYPSOPHILIC SPECIES OF GALIUM (RUBIACEAE) FROM NORTH-CENTRAL MEXICO (1983) (4)
Taxonomic study of the genus Synedrella (Asteraceae, Heliantheae) (1994) (4)
DOCUMENTED CHROMOSOME NUMBERS 1991: 1. CHROMOSOME NUMBERS IN HYBANTHUS (VIOLACEAE) (1991) (4)
THE CHROMOSOMAL AND DISTRIBUTIONAL RELATIONSHIPS OF LUPINUS TEXENSIS AND L. SUBCARNOSUS (LEGUMINOSAE) (1957) (4)
CHROMOSOMES AND PHYLETIC POSITION OF ASTER SONORAE GRAY (ASTERACEAE-SECT. OXYTRIPOLIUM) (1975) (4)
Overview of the genus Baptisia (Leguminosae) (2006) (4)
Systematics of the Sedum parvum group (Crassulaceae) in northeastern Mexico and Texas (1995) (4)
Taxonomic revision of Gaillardia (Asteraceae) (2007) (4)
Oenothera gayleana (Oenothera sect. Calylophus, Onagraceae), a new gypsophile from Texas, New Mexico, and Oklahoma (2014) (3)
An overview of the Brickellia (Kuhnia) eupatorioides (Asteraceae, Eupatorieae) complex (1989) (3)
Revision ofVerbesina sect.Pseudomontanoa (Asteraceae) (1985) (3)
Synoptical study of the Acacia angustissima (Mimosaceae) complex (1996) (3)
TAXONOMY OF AXINIPHYLLUM (ASTERACEAE-HELIANTHEAE) (1978) (3)
A Reevaluation of the Mexican Species of Glandularia (Verbenaceae) (1999) (3)
Taxonomy of Varilla (Asteraceae, Heliantheae) (1990) (3)
A NEW SPECIES OF DYSSODIA (COMPOSITAE) FROM NORTH CENTRAL MEXICO (1972) (3)
La agricultura intensiva de trabajo en las tierras Mayas. (1980) (3)
Revision of the Genus Orbexilum (Fabaceae: Psoraleeae) (2008) (3)
Stuessya (Asteraceae: Heliantheae), a new genus from southcentral Mexico (1980) (3)
The generic concept in the Compositae: a symposium (1985) (3)
Submergence of the genera Caterothamnus and Oaxacana into Hofmeisteria (Eupatorieae, Asteraceae) (1987) (3)
"THE NEW SYNANTHEROLOGY"- A CASE IN POINT FOR POINTS OF VIEW (1970) (3)
A new species of Tetraneuris (Asteraceae, Helenieae) from the Late Tertiary Verde Formation of central Arizona (1996) (3)
Taxonomy of Carphochaete (Asteraceae-Eupatorieae) (1987) (3)
New species of Vernonia (S.L), section Leiboldia, (Asteraceae, Vernonieae), from easternmost Oaxaca, Mexico (1997) (3)
New species and combinations in Perityle (Asteraceae) from northwestern México (1989) (3)
Taxonomy of Machaeranthera sect. Psilactis (Compositae—Astereae) (1964) (3)
Texas species of Tradescantia (Commelinaceae) (2006) (3)
Two new gypsophilic species of Pinguicula (Lentibulariaceae) from Nuevo Leon, Mexico (1994) (3)
PARTITION CHROMATOGRAPHY AS APPLIED TO TAXONOMIC PROBLEMS IN THE ASTERACEAE (1964) (3)
Miscellaneous chromosome numbers: Texas plant species (2010) (3)
Taxonomy of hymenothrix (Helenieae, Compositae) (1962) (3)
Arenaria hintoniorum (Caryophyllaceae), a new gypseous species from southern Nuevo Leon, Mexico (1993) (3)
CHROMOSOME NUMBERS OF GLANDULARIA (VERBENACEAE) FROM CENTRAL AND TRANS-PECOS, TEXAS (2005) (3)
Natural Populations of Hesperaloe (Agavaceae) in Texas (2002) (3)
Taxonomy of Tetraneuris (Asteraceae: Helenieae: Tetraneurinae) (2003) (3)
NEW GYPSOPHILIC SPECIES OF PSEUDOCLAPPIA AND SARTWELLIA (ASTERACEAE) FROM WEST TEXAS AND EASTERN CHIHUAHUA (1976) (3)
A TAXONOMIC STUDY OF THE GENUS CHAMAECHAENACTIS RYDBERG (COMPOSITAE) (1953) (3)
New species and combinations in Nerisyrenia lBrassicaceaer of Mexico (1993) (3)
A taxonomic overview of Scutellaria, Section Resinosa (Lamiaceae) (1994) (3)
TAXONOMIC STUDY OF VENEGASIA (ASTERACEAE: HELENIEAE) (1992) (3)
A new species of Oxylobus (Asteraceae, Eupatorieae) from Puebla, Mexico (1988) (3)
Texas Species of Glandularia (Verbenaceae) (1998) (3)
Aster gypsophila (Compositae), a New Endemic Gypsophile from North-Central Mexico (1974) (3)
The genus Liabum (Asteraceae, Liabeae) in the Dominican Republic and Haiti (1996) (3)
Taxonomic status of Clinopodium macrostemum (Lamiaceae) (2008) (3)
Mimosa rupertiana B.L. Turner, a new name for M. occidentalis (Wooton and Standley) B.L. Turner, not M. occidentalis Britton and Rose (1994) (3)
Brickellia sonorana (Asteraceae), a new species from Mexico belonging to the subgenus Phanerostylis (1991) (2)
Recension of the Cronquistianthus group of Eupatorium (Asteraceae) (1991) (2)
M EXICAN SPECIES OF HELIOMERIS (ASTERACEAE: HELIANTHEAE) (2012) (2)
Taxonomic overview of the genus Cologania (Fabaceae---Phaseoleae) (1992) (2)
Taxonomy of Stenocarpha (Compositae-Heliantheae-Galinsoginae) (1965) (2)
TAXONOMY OF TETRAGONOTHECA ( ASTERACEAE-HELIANTHEAE) (1980) (2)
TWO NEW SPECIES OF VERBESINA SECT. PLATYPTERIS (ASTERACEAE) FROM JALISCO, MÉXICO (1988) (2)
Texas species of Mirabilis (Nyctaginaceae) (1993) (2)
Transfer of two species of Senecio to Pseudogynoxys (Asteraceae-Senecioneae) (1991) (2)
Taxonomy of the Texas sunflower (Helianthus praecox) Asteraceae (2014) (2)
Convolvulus carrii, a localized endemic form southernmost Texas (2009) (2)
New combinations in Perymenium with special reference to P. buphthalmoides (Asteraceae) (1988) (2)
Gaillardia aestivalis var. winkleri (Asteraceae), a white-flowered tetraploid taxon endemic to southeastern Texas. (1979) (2)
TWO NEW SPECIES OF ISOCOMA (COMPOSITAE-ASTEREAE) FROM NORTH CENTRAL MEXICO (1972) (2)
Native species of Bauhinia (Caesalpiniaceae) occuring in northeastern Mexico (1994) (2)
Revision of the genusOxylobus (Asteraceae-Eupatorieae) (1985) (2)
A new species of Ageratina (Asteraceae, Eupatorieae) from Nuevo León, México (1993) (2)
Atlas of the Texas species of Phlox (Polemoniaceae) (1998) (2)
Biological status of the names Abronia carletonii and A. nealleyi (Nyctaginaceae) (2004) (2)
Two new species of Senecio section Palmatinervii (Asteraceae) from eastern Mexico (2008) (2)
New species, names and combinations in Wedelia (Asteraceae-Heliantheae) (1988) (2)
SMALLANTH US PUTLANUS (ASTERACEAE: HELIANTHEAE), A NEW SPECIES FROM OAXACA, MEXICO (2010) (2)
The Biology and Chemistry of the Compositae. (1978) (2)
Cryptantha geohintonii (Boraginaceae), a newly described gypsophile from Nuevo Leon, Mexico (2008) (2)
New species and combinations in Selinocarpus (Nyctaginaceae) (1993) (2)
Vernonia boquerona (Asteraceae), a new species from Chiapas, Mexico (1996) (2)
RECE NSION OF THE MEXICAN SPECIES OF ZALUZANIA (ASTERACEAE: HELIANTHEAE) (2012) (2)
Two new species of Ageratina (Asteraceae, Eupatorieae) from Oaxaca, Mexico (1992) (2)
A NEW SPECIES OF ARIDA (MACHAERANTHERA SECT. ARIDA-ASTERACEAE: ASTEREAE) FROM TRANS-PECOS, TEXAS (2003) (2)
A new species of Viguiera (Asteraceae, Heliantheae) from Nayarit, Mexico (1978) (2)
A new species of Critonia (Asteraceae, Eupatorieae) from Guerrero, Mexico (1996) (2)
New species, new combinations and comments on Mexican Verbesina (1987) (2)
SEVEN NEW SPECIES OF AGERATINA (ASTERACEAE: EUPATORIEAE) FROM MEXICO (2008) (2)
Novelties and new combinations in Mexican Hedeoma (Lamiaceae) (1991) (2)
THE BASIC CHROMOSOME NUMBER OF THE GENUS NEPTUNIA (LEGUMINOSAE-MIMOSOIDEAE) (1960) (2)
A NEW SPECIES OF ZIGADENUS LILIACEAE FROM EASTERN MEXICO (1992) (2)
CONV OLVULUS CARRII, A LOCALIZED ENDEMIC FROM SOUTHERNMOST TEXAS (2009) (2)
Two new gypsophilous species of Machaeranthera [M. crutchfledii, M. gypsophila] (Asteraceae-Astereae) from north-central Mexico (1973) (2)
Taxonomy of the Penstemon campanulatus complex (Scrophulariaceae) and description of a new species from its midst (2010) (2)
Two new species of Poliomintha (Lamiaceae) from northeastern Mexico (1993) (2)
A NEW SPECIES OF RATIBIDA (ASTERACEAE, HELIANTHEAE) FROM NORTHERN COAHUILA, MÉXICO (1988) (2)
A new species of Geranium (Geraniaceae) from Oaxaca, Mexico (1996) (2)
A new species of Steviopsis (Asteraceae: Eupatorieae) from Nuevo Leon, Mexico (1990) (2)
A new species of Menodora (Oleaceae) from the Sierra Madre Occidental in eastern Sonora, Mexico (1997) (2)
A new species of Aphanactis (Asteraceae: Heliantheae: Galinsoginae), from Oaxaca, México (1990) (2)
Botanical anecdotes: Circumstances surrounding the collections of Dichondra micrantha (Convolvulaceae) in Lasalle County, Texas (2008) (2)
New species, names and combination in Senecio sect. Palmatinervii (Asteraceae) (1989) (2)
Two new species of Eupatorium (Asteraceae) from northeastern Mexico (1985) (2)
A new species of Mentzelia (Loasaceae) from Nuevo Leon, Mexico (1995) (2)
Synopsis of the North American species of Loeselia (Polemoniaceae) (1994) (2)
The Computer and the Mind: An Introduction to Cognative Science, P.N. Johnson-Laird. 1987. Harvard University Press, Cambridge, MA. 448 pages. ISBN: 0-674-15615-3. $29.50 (1988) (2)
A New Variety of Stanleya pinnata (Brassicaceae) from the Big Bend Region of Trans-Pecos, Texas (2004) (2)
Lectotypification of Senecio neomexicanus A. Gray (1993) (2)
An underview of the genus Schistocarpha (Asteraceae-Heliantheae) (1986) (2)
NOMAPHILA STRICTA (ACANTHACEAE), A NEWLY DISCERNED AQUATIC WEED IN TEXAS, AND THE FIRST REPORT FOR NORTH AMERICA (1992) (2)
Reduction of the genera Piqueriopsis and Iltisia to Microspermum (Asteraceae-Eupatorieae) (1987) (2)
A new species of Ageratina (Asteraceae: Eupatorieae) from Chimalapa, Oaxaca, México (1989) (2)
A new species of Brickellia, subgenus Phanerostylis (Asteraceae) (1978) (2)
Ageratina bobjansenii (Asteraceae: Eupatorieae), a new species from Durango, Mexico (1996) (2)
NOTES ON THE VERBESINA HINTONIORUM (ASTERACEAE) COMPLEX OF NUEVO LEON, MEXICO (2007) (2)
Destruction of the Tropics (1978) (2)
Taxonomy and nomenclature of Schkuhria pinnata (Asteraceae, Helenieae) (1995) (2)
Two new cliff dwelling species of Pinaropappus (Asteraceae, Lactuceae) from northern Mexico (1992) (2)
Systematic study ofOsbertia (Asteraceae-Astereae) (1986) (2)
Study of the Ageratina mairetiana complex (Asteraceae-Eupatorieae) (1987) (2)
Taxonomy ofNeurolaena (Asteraceae-Heliantheae) (1982) (2)
A new species of Gentiana (Gentianaceae) from Nuevo Leon, Mexico (1996) (1)
New species of Mexican Phacelia, subgenus Cosmanthus (Hydrophyllaceae) (1991) (1)
A new species of Pectis lAsteraceaec Tageteaer from Sonorac Mexico (1995) (1)
Russelia manantlana (Scrophulariaceae), a new species from Jalisco, Mexico (1996) (1)
Three New Species of Ageratina (Asteraceae: Eupatorieae) from Oaxaco, Mexico and a Key to the A. mairetiana Complex (2006) (1)
A new species of Lepechinia (Lamiaceae) from Oaxaca, Mexico (2013) (1)
Xanthisma pseudorestiforme (Asteraceae: Astereae), a new gypsophile from Nuevo Leon, Mexico (2010) (1)
Dalea austrotexana (Fabaceae), a new species from southernmost Texas (2006) (1)
Coreopsis mutica var. guerreroana (Asteraceae), a new taxon from Mexico (1992) (1)
Hymenopappus carrii, a new species form the gulf coastal prairie of south-central Texas (2015) (1)
An overview of the Mexican genus Digitacalia lAsteraceaec Senecioneaer (1990) (1)
CROTON BIGBENDENSIS (EUPHORBIACEAE), A NEW SPECIES FROM TRANS-PECOS, TEXAS (2004) (1)
A new species of Eupatoriastrum (Asteraceae-Eupatorieae) from Oaxaca Mexico (1986) (1)
Recension of the Mexican species of Hymenostephium (Asteraceae: Heliantheae) (2013) (1)
A new species of Russellia [sic] (Scrophulariaceae) (1983) (1)
Comments Upon the Taxonomy and Typification of Amaranthus torreyi, A. Fimbriatus, and A. Venulosus (Amaranthaceae) (2004) (1)
SPOROBOLUS COAHUILENSIS (POACEAE): A NEW RECORD FOR THE U.S.A FROM TRANS-PECOS, TEXAS (2004) (1)
Eupatoriastrum pochutlanum (Asteraceae: Eupatorieae), a new species from Oaxaca, Mexico (2008) (1)
A NEW SPECIES OF SCUTELLARIA (LAMIACEAE) FROM OAXACA, MEXICO (2011) (1)
THREE NEW SPECIES OF AGERATINA (ASTERACEAE, EUPATORIEAE) FROM MEXICO BELONGING TO THE A. CAPILLIPES COMPLEX (2012) (1)
A NEW SPECIES OF CENTAURIUM (GENTIANACEAE) FROM TRANS-PECOS TEXAS (2004) (1)
DOCUMENTED CHROMOSOME NUMBERS 2005:1. MISCELLANEOUS COUNTS FROM WESTERN TEXAS, MOSTLY TRANS-PECOS (2005) (1)
Persistence of the weed Euphorbia exigua in Texas (2011) (1)
A new red-flowered Salvia (Lamiaceae) from Baja Verapaz, Guatemala (1996) (1)
Perymenium hintoniorum (Asteraceae, Heliantheae) a new species from Nuevo León, México (1991) (1)
Two new species of Eupatorium (Asteraceae: Eupatorieae) from Chiapas, México (1990) (1)
Taxonomic status of Zexmenia villosa (Asteraceae-Heliantheae) (1990) (1)
Taxonomy ofCarminatia (Asteraceae, Eupatorieae) (1988) (1)
A NEW SPECIES OF AXINIPHYLLUM (ASTERACEAE: HELIANTHEAE) FROM DURANGO, MEXICO (1987) (1)
HELIOTR OPIUM PROCUMBENS (BORAGINACEAE): NATIVE OR ADVENTIVE IN THE USA? (2010) (1)
New species and combinations in the genera Sigesbeckia and Trigonospermum (Compositae: Melampodiinae) (2008) (1)
Taxonomic overview of the Senecio flaccidus complex in North America, including S. douglasii (1990) (1)
New species of Neurolaena (Asteraceae-Heliantheae) (1977) (1)
POPULATIONAL ANALYSES AND NEW COMBINATIONS IN PSILOSTROPHE-TAGETINA AND PSILOSTROPHE-GNAPHALODES ASTERACEAE HELIANTHEAE (1988) (1)
A new species of Achyropappus (Asteraceae: Bahieae) from Querétaro, Mexico (2012) (1)
A new species of Roldana (Senecioneae) from Oaxaca, Mexico (1996) (1)
Systematic study of the monotypic genera Mexianthus and Neohintonia (Asteraceae: Eupatorieae) (1989) (1)
A reevaluation of the genus Alepidocline (Asteraceae, Heliantheae, Galinsoginae) and description of a new species from Oaxaca, México (1990) (1)
Conspectus of the Mexican species, Brickellia secundiflora (lag.) A. Gray, and its infraspecific categories (1989) (1)
NEW TAXA OF PALAFOXIA (ASTERACEAE: HELENIEAE) (1975) (1)
Verbesina aramberrana (Asteraceae, Heliantheae) a new gypseous species from Nuevo León, México (1993) (1)
Errata: Recension of Salvia sect. Farinaceae (Lamiaceae) (2008) (1)
New combinations in Mexican Vernonia (sect. Lepidaploa). (1988) (1)
Update on the genus Jaegeria (Compositae--Heliantheae) (1984) (1)
Two new species of Perityle (Asteraceae, Helenieae) from México (1990) (1)
New species and combinations in Chrysanthellum (Asteraceae-Coreopsidae) (1982) (1)
TAXONOMY OF OXYPAPPUS (COMPOSITAE) (1966) (1)
Taxonomic study of the Coreocarpus arizonicus - C. sonoranus (Asteraceae, Heliantheae) complex (1996) (1)
New species, names, and combinations in Mexican Asteraceae (1990) (1)
Two new species of Tagetes (Asteraceae-Tageteae) from Mexico (1988) (1)
Overview of Vicia (Fabaceae) of Mexico (2014) (1)
Biological status of the varietal taxa of Thymophylla pemtachaeta (Asteraceae: Tageteae) (2009) (1)
New species and names in Zaluzania and Viguiera (Asteraceae-Heliantheae) (1985) (1)
New species and combinations in Ageratina lAsteraceae-Eupatorieaer from Mexico (1987) (1)
Two new species of Stevia (Asteraceae: Eupatorieae) from Oaxaca, Mexico (2013) (1)
Darcya (Scrophulariaceae), a new genus from Central and South America (1993) (1)
Taxonomy of the Dalea phleoides (Fabaceae) complex (2013) (1)
Karyotype of Xylorhiza wrightii Gray (Compositae) (1964) (1)
A NEW SPECIES OF CHAETOPAPPA (ASTERACEAE-ASTEREAE) FROM NORTH CENTRAL MEXICO (1977) (1)
Arenaria lanuginosa (Caryophyllaceae), Taxonomic Status and Distribution (2016) (1)
A new species of Verbesina (Asteraceae) from Durango, Mexico (1986) (1)
Two new species of Ageratina (Asteraceae: Eupatorieae) from southcentral México (1989) (1)
Revision of South American species of Perymenium (Asteraceae, Heliantheae) (1993) (1)
Synoptical study of Rhus virens (Anacardiaceae) and closely related taxa (1996) (1)
A new species of Tridax (Asteraceae-Heliantheae) from Oaxaca, Mexico (1988) (1)
Arenaria gypsostrata B.L. Turner, a new name for A. hintoniorum B.L. Turner, not A. hintoniorum B.L. Turner (1993) (1)
Two new species of Gibasis (Commelinaceae) from Nuevo Leon, Mexico (1993) (1)
Taxonomy of the Hedyotis acerosa (Rubiaceae) complex (1995) (1)
Recension of Viguiera (sensu stricto) (Asteraceae: Heliantheae) of Mexico (2015) (1)
Osmorhiza geohintonii (Apiaceae), a new species from Nuevo León, Mexico (2011) (1)
Taxonomy of Asclepias hirtella and A. longifolia (Apocynaceae) (2009) (1)
Two new species of Ageratina (Asteraceae-Eupatorieae) from northeastern México (1991) (1)
Taxonomy of the papillose Euphorbia [Tithymalus] longecornuta complex (Euphorbiaceae) of northern Mexico (2011) (1)
New species and combinations in Podachaenium (Asteraceae, Heliantheae) (1992) (1)
Taxonomic revision of Geniostemon lGentianaceaer (1994) (1)
New species and combinations in Ageratina from northcentral Mexico (1987) (1)
ANNOTATED DISTRIBUTION OF THE MONOTYPIC GENUS LINDHEIMERA (ASTERACEAE: HELIANTHEAE) (1993) (1)
Synoptical study of Rhododon lLamiaceaer (1995) (1)
Revisionary study of the genus Milleria (Asteraceae, Heliantheae) (1996) (1)
Menodora gypsophila (Oleaceae), a new species from near Galeana, Nuevo Leon, Mexico (1995) (1)
A new Porophyllum (Asteraceae: Tageteae) from southcentral Mexico (1983) (1)
Reduction of the Mexican genus Agriabampoa to Alvordia (Asteraceae, Heliantheae) (1988) (1)
A new species of Psathyrotopsis (Asteraceae, Helenieae) from Coahuila, México (1993) (1)
Phlox drummondii (Polemoniaceae) revisited (1998) (1)
Two new species of Heliopsis (Asteraceae) from northwestern Mexico (1987) (1)
Podach[a]enium chimalapanum (Asteraceae), a new species from easternmost Oaxaca, Mexico (1998) (1)
Taxonomic status of Brickelliastrum villarrealii R. M. King & H. Robins. (Asteraceae, Eupatorieae) (1994) (1)
Revision of Desmanthodium (Asteraceae) (1996) (1)
A new species of Senecio (Asteraceae) from Nuevo Leon, Mexico (1988) (1)
A NEW SPECIES OF LOBELIA CAMPANULACEAE FROM OAXACA MEXICO (1992) (1)
New combinations in Stevia lAsteraceaec Eupatorieaer (1988) (1)
A new species of Perityle (Asteraceae, Helenieae) from southern Zacatecas, México (1993) (1)
Agalinis gypsophila (Scrophulariaceae), a new species from gypsum outcrops in Nuevo Leon Mexico (1986) (1)
New names and combinations for Mexican Asteraceae (Tribe Eupatorieae) (1989) (1)
Taxonomic Status of Rhynchosia diversifoliia var. Prostrata (Fabaceae) (2012) (1)
A new species of Hyaloseris (Asteraceae, Mutiseae) from Bolivia. (1986) (1)
Biological status of Funastrum cynanchoides and F. hartwegii (Asclepiadaceae) (2008) (1)
A new species of Verbesina (Asteraceae, Heliantheae) from Jalisco, Mexico (1992) (1)
Recension of the Asplundianthus group of Eupatorium, s.l (1991) (1)
Oxylobus subglaber King & H. Rob. (Asteraceae: Eupatorieae) –– acceptance of its specific status (2011) (1)
ANTIPHYTUM HINTONIOR UM (BORAGINACEAE) (1983) (1)
Ageratina moorei (Asteraceae: Eupatorieae), a new species from the state of Mévico, México (1990) (1)
A new species of Ageratina (Asteraceae-Eupatorieae) from Coahuila, Mexico (1987) (1)
VARIATION IN THE BERLANDIERA PUMILA (ASTERACEAE) COMPLEX (1998) (1)
A new species of Vernonia (Asteraceae) from Sonora, Mexico (1992) (1)
A Gypsophilic Species of Helianthella. (Asteraceae, Heliantheae) from Northeastern Mexico (1977) (1)
Two new species of Russelia (Scrophulariaceae) from Mexico and Guatemala (1996) (1)
A new species of Zeltnera (Gentianaceae) from Tamaulipas, Mexico (2011) (1)
Ageratina acevedoana (Asteraceae, Eupatorieae), a new species from northern Durango (1993) (1)
A new species of Neuroleana [sic] from southern México (1990) (1)
Distribution of Heliotropium torreyi (Boraginaceae), and the Description of a New Species from Its Midst (2007) (1)
Ageratina henzium lAsteraceaec Eupatorieaerc a new species from northwestern México (1990) (1)
A new species of Eucnide (Loasaceae) from Chiapas, Mexico (2012) (1)
Systematic study of the genusEupatoriastrum (Asteraceae, Eupatorieae) (1994) (1)
A new species of Hidalgoa (Asteraceae, Coreopsideae) from southern Mexico (1988) (1)
Three new species of Phacelia (Hydrophyllaceae) from Nuevo León, Mexico (1986) (1)
A NEW SPECIES OF FRANKENIA (FRANKENIACEAE) FROM GYPSEOUS SOIL OF NORTH CENTRAL MEXICO (1973) (1)
Hydropectis stevensii (Tageteae) positioned in a new monotypic genus Hydrodyssodia. (1988) (1)
Two new species of Stevia (Asteraceae, Eupatorieae) from Mexico (1992) (1)
The natural distribution and biological status of Helenium amarum and H. badium (Asteraceae, Heliantheae) (1988) (1)
Sabazia lapsensis, a new name for S. breedlovei B. L. Turner (1997) (Asteracea, Heliantheae), non S. Breedlovei B. L. Turner (1976) (1997) (0)
Hedeoma rzedowskii (Lamiaceae), a new species from northcentral Mexico (1994) (0)
A new species of Stevia (Asteraceae) from Cerro Quiexobra, Oaxaca, Mexico (1995) (0)
Río Bec Terraces and Related Features (2019) (0)
NEW COMBINATIONS IN THE GENUS MONTANOA ASTERACEAE (1988) (0)
Two new species of Ageratina (Asteraceae) from Mexico (1995) (0)
Senecio macdonaldii (Asteraceae), a new species of the psacaliopsis group from Oaxaca, México (1990) (0)
Two new species of Senecio (Asteraceae) from Mexico (1996) (0)
A new species of Perymenium (Asteraceae, Heliantheae) from Jalisco, México (1993) (0)
RECENSION OF KYRSTENIOPSIS (ASTERACEAE: EUPATORIEAE) AND DESCRIPTION OF A NEW SPECIES FROM OAXACA, MEXICO (2007) (0)
(Vol.13, 2010-12) New Taxon in Psacalium (Asteraceae: Senecioneae) From Oaxaca, Mexico (2010) (0)
A new species of Verbesina lAsteraceaer from Oaxacac Mexico (1995) (0)
A new species of Bocconia (Papaveraceae) from Oaxaca, Mexico (1995) (0)
A new species of Callisia (Commelinaceae) from Nuevo Leon, Mexico (1993) (0)
A new variety of Berlandiera lyrata from northwestern Mexico (1988) (0)
Verbesina (sect. Pterophyton) felgeri (Asteraceae) a new species from Sonora Mexico (1985) (0)
Verbesina tamaulipana lAsteraceaerc a new species from Méxicoc belonging to section Ocractinia (1994) (0)
(Vol. 07, 2004-12) A New Variety of Stanleya Pinnata (Brassicaceae) from the Big Bend Region of Trans-Pecos, Texas (2004) (0)
New combinations in Mexican species of Eupatoriae (Asteraceae) (1997) (0)
Bahia depauperata (Asteraceae: Bahieae) transferred to Achyropappus (2010) (0)
An international symposium (1997) (0)
RECENSION OF THE MEXICAN AMAURIOPSIS (ASTERACEAE: BAHIEAE) (2010) (0)
New species and combinations in Hofmeisteria (Asteraceae, Eupatorieae) (1992) (0)
New Mexican taxa in the genus Hieracium (Asteraceae) (1990) (0)
Systematic reevaluation of the Phacelia patuliflora (Hydrophyllaceae) complex (2010) (0)
(Vol. 19, 2016-12) Arenaria lanuginosa (Caryophyllaceae), Taxonomic Status and Distribution. (2016) (0)
New species and combinations in Mexican Viguiera (Asteraceae-Heliantheae) (1989) (0)
A new variety of Sclerocarpus uniserialis (Asteraceae, Heliantheae) from southernmost Texas (1988) (0)
NEW COMBINATIONS IN CALEA AND TETRACHYRON ASTERACEAE-HELIANTHEAE (1988) (0)
BIOLOGICAL STATUS OF HEDYOTIS NIGRICANS VAR. GYPSOPHILA (RUBIACEAE) IN TEXAS (2002) (0)
Transfer of Hymenoxys argentea var. Thoreauensis to Tetraneuris (Asteraceae: Helenieae: Tetraneuridinae) (2010) (0)
GLANDULARIA VERECUNDA (VERBENACEAE): SPECIES OR FRUIT-FORM? (2003) (0)
A new species of Heliomeris (Asteraceae: Heliantheae) from Oaxaca, Mexico (2013) (0)
Three new species of Stevia (Asteraceae: Eupatorieae) from northern Coahuila (2014) (0)
The Texas species of Paronychia (Caryophyllaceae) (1983) (0)
ME XICAN SPECIES OF THE GENUS BARTLETTINA (ASTERACEAE: EUPATORIEAE), AND ERECTION OF THREE NEW SPECIES (2010) (0)
Bidens serboana (Asteraceae: Coreopsideae), a new species from Oaxaca, Mexico (2013) (0)
Perymenium oaxacanum (Asteraceae), a new species from southern Mexico (1988) (0)
Taxonomy of Physaria purpurea (Brassicaceae) (2013) (0)
Biochemical Systematics and Evolution (1980) (0)
(Vol. 09, 2006-12) Three New Species of Ageratina (Asteraceae: Eupatorieae) from Oaxaco, Mexico and a Key to the A. Mairetiana Complex (2006) (0)
NEW SPECIES AND COMBINATIONS IN MEXICAN HETEROTHECA ASTERACEAE-ASTEREAE (1987) (0)
The Cassia fasciculata Complex (Leguminosae) in Texas (2021) (0)
SYSTE MATIC STUDY OF THE KOANOPHYLLON PALMERI COMPLEX (ASTERACEAE: EUPATORIEAE) (2012) (0)
A trifoliate species of Koanophyllon (Asteraceae-Eupatorieae) from Chiapas, Mexico (1987) (0)
Eucnide lobata (Loasaceae), first record for the U. S. A. (2013) (0)
BLAINVILLEA-BRASILIENSIS BLAKE TRANSFERRED TO CALYPTOCARPUS ASTERACEAE (1988) (0)
A new species of Galium (Rubiaceae) from northeastern Mexico (1996) (0)
Vernonia boquerona lAsteraceaerc a new species from Chiapasc Mexico (1996) (0)
LECTOTYPIFICATION OF LUPINUS SUBCARNOSUS AND L. TEXENSIS (FABACEAE) (1986) (0)
Taxonomy of the Argemone fruiticosa complex (Papaveraceae) (2013) (0)
Stevia strotherana [sic] (Asteraceae), a newly proposed name for the homonym, Stevia hispidula (2005) (0)
Vernonia diazlunana (Asteraceae, Vernonieae), a new species from Jalisco, México (1990) (0)
A new species of Senecio (Asteraceae) from Tamaulipas, Mexico (1985) (0)
(Vol. 09, 2006-12) Species Of Philadelphus (Hydrangeaceae) From Trans-Pecos Texas (2006) (0)
(Vol. 06, 2003-12) Taxonomy of Tetraneuris (Asteraceae: Helenieae: Tetraneurinae) (2003) (0)
New taxa and combinations in Mexican Asteraceae (Ageratina, Berlandiera and Verbesina) (1988) (0)
Taxonomic study Hedyotis palmeri (Rubiaceae) (1995) (0)
Taxonomic review of the Xanthisma spinulosum complex (Asteraceae: Astereae) (2007) (0)
Two new species of Brickellia lAsteraceaec Eupatorieaer from northern México (1990) (0)
BRICKELLIA ENIGMATICA (ASTERACEAE: E UPATORIEAE), A NEW SPECIES FROM NORTH-CENTRAL MEXICO (2011) (0)
A new species of Allium (Liliaceae) from Nuevo Leon, Mexico (1993) (0)
Verbesina Tiburonensis (Asteraceae: Heliantheae), A New Species from Isla Tiburón, Gulf of California, Mexico (2015) (0)
(Vol.12, 2009-12) Iva Corbinii (Asteraceae): A Remarkable New Species From Travis County, Texas (2009) (0)
Crossothamnus pascoanus (Asteraceae-Eupatorieae), a new species from Pasco, Perú (1990) (0)
A new species of Brickellia (Asteraceae, Eupatorieae) from northwestern Mexico (1992) (0)
New species and new combinations in Mexican Asteraceae (Helianthella, Sabazia and Verbesina) (1989) (0)
Two new Mexican species of Senecio (Asteraceae) (1995) (0)
Viguiera iltisii (Asteraceae, Heliantheae) a new species from Jalisco, Mexico (1989) (0)
SYSTEMATIC STUDY OF TEXAS POPULATIONS OF PHACELIA PATULIFLORA (HYDROPHYLLACEAE) (1994) (0)
Nesomia chiapensis (Asteraceae-Eupatorieae), a new genus and species from Mexico (1991) (0)
A NEW SPECIES OF CARDAMINE (BRASSICACEAE) FROM NUEVO LEON, MEXICO (2012) (0)
A new species of Perityle (Asteraceae, Helenieae) from Sonora, Mexico (1993) (0)
A new variety of Coreopsis mutica (Asteraceae) from western Oaxaca (1996) (0)
Taxonomic Revision of the Genus Fendlera (Hydrangeaceae) (2001) (0)
Sedum gypsophilum (Crassulaceae), a new species from Nuevo Leon, Mexico (1986) (0)
Agricultura y desarrollo del estado en las Tierras Bajas mayas (2013) (0)
Sabazia breedlovei (Asteraceae, Heliantheae), a new species from Guerrero, Mexico (1997) (0)
A new species of Viguiera (Asteraceae: Heliantheae) from Nuevo Leon, Mexico (1989) (0)
Two New Species of Wamalchitamia (Asteraceae: Heliantheae) from Oaxaca, Mexico (2013) (0)
(Vol. 01, 1998-05) Texas Species of Glandularia (Verbenaceae) (1998) (0)
THE TAXONOMIC STATUS OF STEMMATELLA (COMPOSITAE-HELIANTHEAE) (1966) (0)
Verne Grant (1917-2007) (2007) (0)
The genus Asanthus (Asteraceae: Eupatorieae) revisited (2014) (0)
Thelesperma nuecense, a new species from South Texas and its bearing on the status of T filifolium (1959) (0)
Taxonomy and distribution Dalea wrightii (Fabaceae) (2010) (0)
BIOLOGI CAL STATUS OF HEDEOMA DRUMMONDII, H. REVERCHONII (LAMIACEAE) AND CLOSELY RELATED TAXA (2011) (0)
(Vol.15, 2012-12) Taxonomic Status Of Rhynchosia Diversifoliia Var. Prostrata (Fabaceae) (2012) (0)
GENTIANELLA CANOSOI (GENTIANACEAE), A NEW SPECIES FROM DURANGO, MEXICO (1990) (0)
Taxonomic status of Porophyllum X fruticulosum Rydb. (Asteraceae: Tageteae) (2013) (0)
Two new varieties of Hedeoma palmeri (Lamiaceae) from northeastern Mexico (1995) (0)
Stevia calzadana (Asteraceae) a new species from Oaxaca, Mexico (1995) (0)
A new scapose species of Acourtia (Asteraceae, Mutisieae) from Belize (1993) (0)
(Vol.18, 2015-12) Verbesina Tiburonensis (Asteraceae: Heliantheae), A New Species from Isla Tiburón, Gulf of California, Mexico (2015) (0)
Bouvardia hintoniorum (Rubiaceae), a new species from Guerrero, Mexico (1986) (0)
Overview of the section Platypteris of Verbesina (Asteraceae) and description of a new species (2008) (0)
Electrophoretic Approaches to Animal Systematics (1981) (0)
Two new species of Wedelia (Asteraceae: Heliantheae), with a conspectus of the genus for Mexico (2004) (0)
New species and combinations in Pseudogynoxys (Senecioneae) (1996) (0)
A NEW SPECIES OF TRIDAX (ASTERACEAE, MILLERIEAE) (2012) (0)
NEW COMBINATIONS IN SECTION EREMOSIS OF VERNONIA ASTERACEAE (1989) (0)
New species of Wedelia (Asteraceae, Heliantheae) from Mexico and critical assessment of previously described taxa (1992) (0)
Two new species of Verbesina (Asteraceae) from Mexico, sections Sonoricola and Saubinetia (1985) (0)
TAX ONOMY AND DISTRIBUTION OF SENECIO PARRYI (ASTERACEAE) (2011) (0)
A CTYOTAXONOMIC STUDY OF THE GENUS HYMENOPAPPUS (COMPOSITAE) (Continued) (1956) (0)
Two new species ofSenecio sectionPalmatinervii (Asteraceae) from eastern Mexico (1989) (0)
A new species of Psacalium (Asteraceae: Senecioneae) from Guerrero, Mexico (1989) (0)
Transfer of Aster gentryi Standl. to the genus Machaeranthera, sect. Psilactis (1972) (0)
Heterosperma xanti transferred to the genus Bidens (Asteraceae: Coreopsideae) (2007) (0)
A new species of Trigonospermum (Asteraceae) from northeastern Mexico (1995) (0)
A new species of Neurolaena (Asteraceae) from Oaxaca, Mexico (1998) (0)
PLATEILEMA (ASTERACEAE: HELENIEAE) A NEW GENERIC REPORT FOR THE UNITED STATES (2000) (0)
A new species of Cymophora (Asteraceae, Heliantheae) from Guerrero, Mexico (1992) (0)
(Vol.11, 2008-12) Revision of the Genus Orbexilum (Fabaceae: Psoraleeae) (2008) (0)
A new species of Critonia (Asteraceae-Eupatorieae) from Belize (1983) (0)
A new species of Coreopsis (Asteraceae) from southern Mexico (1992) (0)
Infraspecific categories of Hibiscus moscheutos (Malvaceae) in Texas (2008) (0)
MEIOTIC CHROMOSOME COUNTS FOR 12 SPECIES OF (2016) (0)
A new species of Psacalium (Asteraceae, Senecioneae) from Oaxaca, Mexico (1996) (0)
The Latest in Chemosystematics@@@Chemistry in Evolution and Systematics (1974) (0)
A new species of Mentzelia (LOasaceae) from northeastern Mexico (2004) (0)
A NEW SPECIES OF SENECIO (ASTERACEAE) FROM DURANGO, MEXICO (2002) (0)
A new species of Verbesina (Asteraceae) from gypsum outcrops in southern Nuevo León, Mexico (1985) (0)
Heliomeris multiflora var. macrocephala (Asteraceae: Heliantheae), A new record from the U.S.A (2013) (0)
LECTOTYPIFICATION OF MENTZELIA TEXANA AND M. LINDHEIMERI (LOASACEAE) WITH AN ASSESSMENT OF THEIR BIOLOGICAL STATUS (2002) (0)
Gaillardia candelaria var. mikemoorei (Asteraceae: Helenieae), A novel gypsophile from Coahuila, Mexico (2013) (0)
Revisional treatment of the Mexican species of Seymeria (Scrophulariaceae) (1982) (0)
(Vol. 03, 2000-12) The Texas Species of Calliandra (Leguminosae, Mimosoideae) (2000) (0)
A NEW SPECIES OF SCHISTOCARPHA (ASTERACEAE: HELIANTHEAE) FROM NORTHWESTERN OAXACA AND CLOSELY ADJACENT GUERRERO, MEXICO (2002) (0)
A new species of Perityle (Asteraceae) from Sonora, Mexico (2006) (0)
Two new species of Verbesina (Asteraceae) from northeastern Mexico (1985) (0)
New varietal combinations within Stephanomera [sic] exigua and S. virgata (Asteraceae) (2006) (0)
A GERATINA MARKPORTERI (ASTERACEAE: EUPATORIEAE), A NEW SPECIES FROM OAXACA, MEXICO (2012) (0)
Xanthisma spinulosum var. austrotexanum (Asteraceae: Astereae), an endemic of southernmost Texas (2007) (0)
Book Reviews (1982) (0)
A New Species of Ageratina (Asteraceae-Eupatorieae) from Southern Mexico (1984) (0)
Archibaccharis intermedia (Blake) Turner, comb. nov (1984) (0)
THREE NEW SPECIES OF KOANOPHYLLON (ASTERACEAE: EUPATORIEAE) FROM MEXICO (2009) (0)
Sedum booleanum (Crassulaceae), a new red-flowered species from Nuevo Leon, Mexico (1995) (0)
Paronychia hintoniorum (Caryophyllaceae), a new species from Nuevo León and Veracruz, México (1995) (0)
Ageratina gonzalezorum (Asteraceae-Eupatorieae), a new species from Durango Mexico (1985) (0)
STEMODIA COAHUILENSIS (SCROPHULARIACEAE), A NEW RECORD FOR THE UNITED STATES (2005) (0)
A new species of Stenocarpha (Asteraceae, Heliantheae, Galinsoginae) from Mexico (1992) (0)
The Texas Species of Calliandra (Leguminosae, Mimosoideae) (2000) (0)
Bidens melchertii (Asteraceae), a new species from Jalisco, Mexico (2005) (0)
A new species of Sabazia (Asteraceae: Heliantheae) from Oaxaca, México (1990) (0)
Stellaria miahuatlana (Caryophyllaceae), a new species from Oaxaca, Mexico (1995) (0)
(Vol. 04, 2001-12) Taxonomic Revision of the Genus Fendlera (Hydrangeaceae) (2001) (0)
Psacalium perezii (Asteraceae: Senecioneae), a new species from Jalisco, México (1989) (0)
A new species of Potentilla (Rosaceae) from Cerro Quiexobra, Oaxaca (1995) (0)
Book Reviews (2012) (0)
New names and combinations in Mexican Alloispermum (Asteraceae: Heliantheae) (1990) (0)
Hybanthus pennellii (Violaceae) raised to specific rank: A gypsophile from Nuevo León, Mexico (2010) (0)
A second species of Tetrachyron (Asteraceae-Heliantheae) from Oaxaca, Mexico (1986) (0)
Ageratina villarrealii (Asteraceae: Eupatorieae), a new species from Sierra de Zapaliname, Coahuila, Mexico (2010) (0)
A new species of Dalea (Fabaceae) from southernmost Texas (2010) (0)
A new species of Adenophyllum (Asteraceae: Tageteae) from northwestern Mexico (2013) (0)
New species and combinations from México in the Bartlettina complex of the genus Eupatorium (Asteraceae) (1989) (0)
New Taxon in Psacalium (Asteraceae: Senecioneae) from Oaxaca, Mexico (2010) (0)
A new species of Stemodia (Scrophulariaceae) from Costa Rica (1992) (0)
A new species of Galinsoga (Asteraceae-Heliantheae) from Durango, Mexico (1986) (0)
A new species of Sabazia (Asteraceae-Heliantheae) from Durango, Mexico (1987) (0)
Trixis anomala (Asteraceae, Mutiseae [sic]), a new species from Chiapas, México (1990) (0)
TWO NEW SPECIES OF ARENARIA CARYOPHYLLACEAE FROM MEXICO (1992) (0)
A Revision of the Teucrium cubense (Lamiaceae) Complex (2005) (0)
A NEW SPECIES OF SENECIO PSACALIOPSIS FROM GUERRERO MEXICO (1989) (0)
Heliotropium Addendum (2008) (0)
Perymenium vandevenderorum (Asteraceae), a New Species From Sonora, Mexico (2017) (0)
A new species of Lasianthaea (Asteraceae, Heliantheae) from Sinaloa, Mexico (1992) (0)
Species of Philadelphus (Hydrangeaceae) from Trans-Pecos Texas (2006) (0)
A NEW SPECIES OF PIQUERIA ASTERACEAE-EUPATORIEAE FROM MICHOACAN MEXICO (1987) (0)
A NEW SPECIES OF BRICKELLIA FROM CHIHUAHUA MEXICO (1985) (0)
Synthetic Contributions Introducer: Billie Lee Turner II (2021) (0)
A new species of Brickellia (Asteraceae) from northcentral Mexico [B. stolonifera] (1982) (0)
A new species of Tetrachyron (Asteraceae: Heliantheae) from Mexico (2006) (0)
Two new species of Brickellia (Asteraceae: Eupatorieae) from Mexico (2013) (0)
Comparative Farming Systems, B.L. Turner, II and Stephen B. Brush, eds. 1987. The Guilford Press, New York. 428 pages. ISBN: 0-89862-780-x. $37.50 (1988) (0)
A new species of Viguiera (subgenus Amphilepis) from Mexico, with observations on its relationship to the genus Tithonia (Asteraceae) (1995) (0)
A new species of Alepidocline (Asteraceae: Heliantheae) from Oaxaca, Mexico (2011) (0)
BIOLOGICAL STATUS OF ARGYTHAMNIA LAEVIS (EUPHORBIACEAE) (2001) (0)
Iva corbinii (Asteraceae): A Remarkable New Species from Travis County, Texas (2009) (0)
Two new species of Senecio section Palmatinervii (Asteraceae) from northeastern Mexico (1985) (0)
Fasciation of microsporangiate cones of Cycas revoluta (Cycadaceae) in Austin, Texas (2010) (0)
Biological status and distribution of Thelesperma flavodiscum (Asteraceae: Coreopsideae) (2007) (0)
A new species of Coreopsis lAsteraceaer from Guanajuatoc Mexico (1992) (0)
A new Litothamnus (Asteraceae, Eupatorieae) from Brazil (1990) (0)
A new species of Senecio (Asteraceae) from northern Coahuila, Mexico (1993) (0)
Ageratina moorei new species asteraceae eupatorieae a new species from the state of mexico mexico (1990) (0)
Biological status of Packera thurberi (Asteraceae: Senecioneae) and its relationship to Packera neomexicana (2008) (0)
A new species and new combination in Mexican Sedum (Crassulaceae) (1995) (0)
New species and combinations in Sabazia (Heliantheae, Galinoginae) (1975) (0)
Taxonomic study of the Tithonia calva complex (Asteraceae, Heliantheae) (2015) (0)
Taxonomy of Iva angustifolia and I. asperifolia (Asteraceae) (2009) (0)
A NEW SPECIES OF EUPATORIASTRUM (ASTERACEAE: EUPATORIEAE) FROM SAN ANDRÉS TUXTLA, VERACRUZ, MEXICO (2010) (0)
(Vol.11, 2008-12) Heliotropium Addendum (2008) (0)
Taxonomy and distribution of Senecio huachucanus and S. multidentatus (Asteraceae) (2012) (0)
Ageratina gypsophila (Asteraceae-Eupatorieae) a new species from Nuevo Leon, Mexico (1985) (0)
Novelties and new combinations in Machaeranthera (Asteraceae - Astereae) (1986) (0)
Recension of Mexican species of Otopappus lAsteraceaec Heliantheaer (2013) (0)
Brickellia mcdonaldii (Asteraceae, Eupatorieae), a new species from northeastern Mexico (1985) (0)
Taxonomic overview of Brickellia coulteri (Asteraceae: Eupatorieae), including B. brachiata and B. megalodonta (1990) (0)
New species of Lasianthaea, Verbesina and Wedelia (Asteraceae) from Sierra Surotato, northern Sinaloa (1989) (0)
ERIOGONUM GRANITICUM (POLYGONACEAE), A NEW NAME AND RANK FOR E. TENELLUM VAR. RAMOSISSIMUM (2007) (0)
(Vol.14, 2011-12) Systematics of the Rhynchosia Senna Complex (Fabaceae) (2011) (0)
Chemotaxonomy Marches on II@@@Chemotaxonomy of the Leguminosae@@@Aspects of Terpenoid Chemistry and Biochemistry (1972) (0)
Montanoa serboana (Asteraceae: Heliantheae), a new species from Oaxaca, Mexico (2012) (0)
A new annual species of Stevia (Asteraceae: Eupatorieae) from Puebla, México (1990) (0)
Two new gypseous species of Senecio (Asteraceae) from north central Mexico (1993) (0)
Elevation of two varietal taxa of Perymenium (Asteraceae, Heliantheae) to specific rank (2007) (0)
LOWELL DAVID FLYR, 1937-1971 (1972) (0)
TAX ONOMY OF STEVIA SEEMANNII AND S. ALATIPES (ASTERACEAE) WITH DESCRIPTION OF A NEW SPECIES, S. ENIGMATICA, FROM AMONGST THEIR MIDST (2010) (0)
Infraspecific categories in Thelesperma filifolium (Asteraceae: Coreopsideae) (2010) (0)
Taxonomy of Tecoma stans (Bignoniaceae) in North America (2013) (0)
Texas taxa of the genus Berlandiera (Asteraceae: Heliantheae) (2014) (0)
Two new species of Verbesina (Asteraceae, Heliantheae) from the states of Jalisco and Guerrero, México (1990) (0)
Chemotaxonomy: A Welcome Addition@@@Biochemical Systematics@@@Chemical Plant Taxonomy (1965) (0)
TRIGLOCHIN CONCINNA (JUNCAGINACEAE), A NEW FAMILY, GENUS, AND SPECIES FOR TEXAS (2003) (0)
The Río Bec Region (2019) (0)
A NEW SPECIES OF PHASARIA (BRASSICACEAE) FROM NORTHCENTRAL MEXICO (2007) (0)
Antiphytum hintoniorum (Boraginaceae), a Bizarre New Gypsophile from North-Central Mexico (1983) (0)
The Ladyslipper and I by G. L. Stebbins (2009) (0)
A NEW SPECIES OF PERYMENIUM ASTERACEAE-HELIANTHEAE FROM TAMAULIPAS MEXICO (1992) (0)
A NEW SPECIES OF HYMENOPAPPUS ASTERACEAE HELIANTHEAE (1985) (0)
Paronychia virginica (Caryophyllaceae), a first report of its occurrence in Mexico (1995) (0)
Transfer of the Lundell Herbarium (LL) to the University of Texas, Austin (Tex) (1973) (0)
A new species of Cerastium (Caryophyllaceae) from Oaxaca, Mexico (1995) (0)
A new species of Pittocaulon (Asteraceae, Senecioneae) from Oaxaca, Mexico (1995) (0)
Two new species of Eupatorium (Asteraceae) from Nuevo Leon, México (1992) (0)
A new species of Tridax (Asteraceae, Heliantheae) from gypsum outcrops in Nuevo Leon, Mexico (1992) (0)
Lasianthaea machucana (Asteraceae), a new species from Jalisco, Mexico (1997) (0)
New taxa and combinations in Viguiera lAsteraceaec Heliantheaer (1987) (0)
(Vol. 08, 2005-12) A Revision of the Teucrium Cubense (Lamiaceae) Complex (2005) (0)
A NEW SPECIES OF SCUTELLARIA (LAMIACEAE) FROM GUERRERO, MEXICO (2004) (0)
Botany: Flora and Vegetation (1960) (0)
Two new species of Verbesina (Asteraceae, Heliantheae) from México (1990) (0)
A NEW SPECIES OF LITHOSPERMUM (BORAGINACEAE) FROM NUEVO LEON, MEXICO (2002) (0)
(Vol. 07, 2004-12) Comments Upon the Taxonomy and Typification of Amaranthus Torreyi, A. Fimbriatus, and A. Venulosus (Amaranthaceae) (2004) (0)
(Vol. 05, 2002-12) Natural Populations of Hesperaloe (Agavaceae) in Texas (2002) (0)
TAXONOMY OF FLYRIELLA (ASTERACEAE-EUPATORIEAE) (1986) (0)
A new species of Verbesina (sect. Verbesinaria) from Durango, Mexico (1984) (0)
DOCUMENTED CHROMOSOME NUMBERS 2001:1. CHROMOSOME NUMBER OF LUPINUS HAVARDII (FABACEAE) (2001) (0)
Three new species of Koanophyllon (Asteraceae-Eupatorieae) from western Mexico (1987) (0)
Micromolecular Evolution Micromolecular Evolution, Systematics and Ecology: An Essay into a Novel Botanical Discipline Otto Richard Gottlieb (1984) (0)
A new species of Coreopsis section Pseudoagarista (Asteraceae) from Mexico (1986) (0)
TA XONOMIC STUDY OF THE LASIANTHAEA CEANOTHIFOLIA (ASTERACEAE: HELIANTHEAE) COMPLEX (2012) (0)
Two new species of Koanophyllon (Asteraceae--Eupatorieae) from northeastern Mexico (1983) (0)
Two new species of Senecio (Asteraceae) from Sonora, Mexico (1993) (0)
Chemotaxonomy of the Legumin- osae. (1971) (0)
A new species of Senecio (Asteraceae) from Chiapas, México (1991) (0)
NEW COMBINATIONS IN THE GENUS APHANOSTEPHUS ASTEREAE ASTERACEAE (1980) (0)
Verbesina machuacana, a new species from Jalisco, Me|xico (1991) (0)
Unrestricted access to geothermal energy (2008) (0)
(Vol.17, 2014-12) Overview of Vicia (Fabaceae) of Mexico (2014) (0)
A new species of Cardamine (Brassicaceae) from south-central Texas (2012) (0)
Plants: Chemistry and Systematics: Comparative Phytochemistry . T. Swain, Ed. Academic Press, New York, 1966. 374 pp., illus. $14.75. (1967) (0)
A new variety of Perymenium hintoniorum lAsteraceaec Heliantheaer (1995) (0)
Psacalium sharpii (Asteraceae: Senecioneae), a new species from Guerrero Mexico (1990) (0)
Taxonomy and distribution of the Zinnia acerosa (Asteraceae) complex (2012) (0)
Hedyotis pooleana (Rubiaceae), a new species from the Dead Horse Mountains, Trans-Pecos Texas (1995) (0)
Reduction of Viereckia and two species of Chromolaena to Eupatorium (Asteraceae) (1987) (0)
TAX ONOMY OF EUCNIDE BARTONIOIDES (LOASACEAE) (2012) (0)
A new species of Verbesina (sect. Pseudomontanoa) from Jalisco, Mexico (1992) (0)
WAITZIA CONICA (COMPOSITAE-INULEAE), A NEW SPECIES FROM WESTERN AUSTRALIA (1966) (0)
(Vol.10, 2007-12) Distribution of Heliotropium Torreyi (Boraginaceae), and the Description of a New Species From its Midst (2007) (0)
(Vol.16, 2013-12) Two New Species Of Wamalchitamia (Asteraceae: Heliantheae) from Oaxaca, Mexico (2013) (0)

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