Marshall Conring Johnston

Marshall Conring Johnston's AcademicInfluence.com Rankings

Biology

#12174

World Rank

#15632

Historical Rank

#2616

USA Rank

Botany

#516

World Rank

#1450

Historical Rank

#124

USA Rank

biology Degrees

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Biology

Marshall Conring Johnston's Degrees

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

Why Is Marshall Conring Johnston Influential?

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According to Wikipedia, Marshall Conring Johnston is an American botanist who made several explorations in Mexico and specialized in plants in the family Gesneriaceae. Johnston was born in San Antonio in the family of Theodore Harris Johnston and Lucile Mary Conring. He went on his first botanical expeditions to Mexico while still in high school during 1945-1947. On those trips he visited the northern Mexican states of Tamaulipas, Nuevo Leon, Coahuila, Durango, and Zacatecas. From 1972-1974 he made trips to Chihuahua, concentrating on desert flora. These early 1970s trips resulted in the bulk of his botanic collection. Marshal participated in the creation of the books Flora of Texas, Flora of North America, and Flora Neotropica. Johnston was also a professor at the University of Texas at Austin.

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Marshall Conring Johnston'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

Manual of the Vascular Plants of Texas (1971) (980)
Past and Present Grasslands of Southern Texas and Northeastern Mexico (1963) (127)
The North American mesquites Prosopis Sect. Algarobia (Leguminosae) (1962) (32)
THE SPECIES OF ZIZIPHUS INDIGENOUS TO UNITED STATES AND MEXICO (1963) (24)
Revision of Colubrina (Rhamnaceae) (2008) (23)
CHROMOSOME NUMBERS FOR NORTH AMERICAN EUPHORBIACEAE (1975) (23)
Chromosome numbers in the Compositae-III. Certain Mexican species (1961) (16)
Gradients for growth within intact Streptococcus mutans plaque in vitro demonstrated by autoradiography. (1976) (15)
Revision of Scutia (Rhamnaceae) (1974) (13)
Revision of condalia including microrhamnus (Rhamnaceae) (1962) (12)
Still No Herbarium Records for Hortus Malabaricus (1970) (11)
Recharacterization of Dichondra (Convolvulaceae) and a revision of the North American species (1961) (9)
The Useful Wild Plants of Texas, the South-Eastern and Southwestern United States, the Southern Plains, and Northern Mexico. Vol. 1 (1999) (9)
A Gazetteer of the Chihuahuan Desert Region; A Supplement to the Chihuahuan Desert Flora (1976) (9)
Vegetation of the Eolian Plain and associated coastal features of Southern Texas (1955) (8)
The Texas Species of Croton (Euphorbiaceae) (1958) (8)
Chromosome numbers of Dyssodia (Compositae-Tagetinae) and phyletic interpretations (1962) (8)
The Ten Species of Croton (Euphorbiaceae) Occurring in Far Western Texas (1962) (7)
THE FOURTEEN SPECIES OF ZIZIPHUS INCLUDING SARCOMPHALUS (RHAMNACEAE) INDIGENOUS TO THE WEST INDIES (1964) (6)
The Juniperus ashei. (1986) (6)
A NEW COMBINATION IN PHORADENDRON (VISCACEAE) (1989) (5)
Revision of Kentrothamnus (Rhamnaceae) (1973) (5)
Synopsis of the United States Species of Forestiera (Oleaceae) (1957) (5)
The Genus Savia (Euphorbiaceae) in Extreme Western Texas (1960) (4)
PROPOSALS TO REVISE ICBN (1984) (3)
Synopsis of Canotia (Celastraceae) including a new species from the Chihuahuan desert (1975) (3)
A new species of Myrospermum (Leguminosae: Papilionoideae) from Northeastern Mexico (1984) (3)
Euphorbia exigua L. (Euphorbiaceae) in Nueces County. New to Texas (1969) (2)
Botanical Name of the Tea Sageretia of China (1968) (2)
(3, 4) New Combinations in Rhamnaceae Made Necessary by the "Demoulin" Rule with Two Proposals to Stabilize Botanical Nomenclature (1984) (2)
Thamnosma pailensis (Rutaceae), new species from the Sierra de la Paila, Coahuila, Mexico (1983) (2)
THE THREE SPECIES OF STILLINGIA (EUPHORBIACEAE) IN FAR WESTERN TEXAS (1963) (2)
Gouania axilliflora (Rhamnaceae), a new species from Peru (1988) (2)
Rhynchosia senna var. texana, new combination made necessary by the Demoulin Rule (1984) (1)
The geography of the five Texas species of Dichondra (Convolvulaceae) (1963) (1)
Flora of Tropical East Africa: Rhamnaceae (2000) (1)
Sisymbrium Shinnersii M. C. Johnston, New Name (1957) (1)
Two new taxa of Lobelia (Campanulaceae) from the Chihuahuan desert region of Mexico (1982) (1)
Cyperus Onerosus M. C. Johnston, Sp. Nov (1964) (1)
Croton Pottsii, Earlier Name for C. Corymbulosus (1960) (1)
Polygonum texense M. C. Johnston (Polygonaceae), New Species from South Plains and Edwards Plateau (1969) (1)
Phyllanthus barbarae (Euphorbiaceae), new species from Southwestern Tamaulipas, Mexico (1986) (1)
A New Combination and a New Variety in Solidago altissima (Compositae) (1970) (1)
DETERMINATIONS OF RHAMNACEAE OF THE TORNER COLLECTION OF SESSÉ AND MOCIÑO BIOLOGICAL ILLUSTRATIONS (1988) (1)
New Combinations in Texas Euphorbias of Subgenus Chamaesyce (1960) (1)
(100) Proposal for Conservation of the Generic Name Sargentia S. Wats. (1890, Rutaceae) over the Homonym of Wendland et Drude (1887, Palmae) (1963) (1)
The Species of Cnidoscolus and Jatropha (Euphorbiaceae) in Far Western Texas (1963) (1)
Juncus Validus Coville Var. Fascinatus M. C. Johnston, Var. Nov (1964) (1)
Nomenclatural readjustments in Mexican Juniperus (Cupressaceae) (1985) (1)
Ericameria austrotexana M. C. Johnston (Compositae), Nomen Novum (1967) (1)
Colubrina stricta Engelmann Ex M. C. Johnston (Rhamnaceae), New Species from Texas, Nuevo Leon and Coahuila (1969) (0)
Precise Locality for Eleocharis Cylindrica Buckley (Cyperaceae) (1964) (0)
99) Proposal to Conserve the Generic Name 4868 Berchemia DC. against the Nomenclatural Synonym Oenoplia Michx. ex Hedwig. f. (Rhamnaceae) (1963) (0)
Cyperus Niger Ruiz et Pavon var. Castaneus (Pursh) Kuken-Thal the Correct Name for Cyperus Rivularis Kunth (1966) (0)
Viguiera ludens (Shinners) M. C. Johnston, New Combination (Compositae) (1968) (0)
Heterotheca Bartlettii (Blake) M. C. Johnston, New Combination (1957) (0)
Crepis Runcinata Torrey & Gray Var. Runcinata (Compositae) in Dallam County, Species New to Texas (1965) (0)
Scirpus molestus M. C. Johnston (Cyperaceae), Sp. Nov. from Arkansas, Louisiana, and Texas (1964) (0)
Solanum Campechiense L. (Solanaceae) in Extreme Southern Texas (1958) (0)
Dyssodia Mutica M. C. Johnston (Compositae), New Species (1960) (0)
Tridens muticus (Torrey) Nash Forma effusus M. C. Johnston (Gramineae), form. nov. (1969) (0)
The Four Kinds of Argythamnia (Euphorbiaceae) in Far Western Texas (1962) (0)
Celtis Spinosa Sprengel var. Pallida (Torrey) M. C. Johnston, New Combination (1957) (0)
Berchemia Scandens (Hill) K. Koch (Rhamnaceae) in Chiapas: Detailed Locality Data (1966) (0)
The Texas Species of Cyperus subgenus kyllinga (Cyperaceae) (1966) (0)
Loeselia Scariosa (Mart. & Gal.) Walp. in Texas Again (1964) (0)
Anoda henricksonii (Malvaceae), new species from the southern Chihuahuan desert region (1983) (0)
Euphorbia jejuna, New Species from Western Texas (1960) (0)
Carex Aurea Nutt. in Texas Panhandle (1964) (0)
A Flora of Texas@@@Manual of the Vascular Plants of Texas (1972) (0)
Bernardia myricifolia var. incanoides (Euphorbiaceae). New variety from the Chihuahuan Desert region (1980) (0)
Condalia Fasciculata and Ziziphus Obtusifolia (Rhamnaceae) near Tehuacan, Southern Puebla (1966) (0)
Atriplex Klebergorum (Chenopodiaceae), New Species (1961) (0)
OF FORESTIERA (OLEACEAE) (2016) (0)
Croptilon rafinesque (Compositae) a Member of the Mexican Flora (1967) (0)
Ginoria Davisii (Lythraceae), a New Species from Veracruz, Mexico (1956) (0)
Spiranthes emiliae, new species from Sierra de la Madera, Coahuila (1981) (0)
Cyperus Huarmensis (H.B.K.) M. C. Johnston, comb. nov (1966) (0)
Additional Type Material of Bouvardia (Rubiaceae) (1969) (0)
BOUTELOUA RIGIDISETA VAR. CHIHUAHUANA (POACEAE), NEW VARIETY FROM THE CHIHUAHUAN DESERT REGION (1982) (0)
The Four Species of Acalypha (Euphorbiaceae) in Far Western Texas (1962) (0)
Spiranthes chiangii (Orchidaceae), new species for the Chihuahuan Desert region (1980) (0)
Phyllanthus fraguensis (Euphorbiaceae), a New Species from the Chihuahuan Desert Region (1985) (0)
Andropogon spadiceus (Poaceae), a Coahuilan Species Now Known from Texas (1981) (0)
Savia Arida in Coahuila, Mexico (1962) (0)
Eleocharis Austrotexana M. C. Johnston (Cyperaceae), Sp. Nov (1964) (0)
Eleocharis Cylindrica Buckley (Cyperaceae) in the Sierra Vieja, Presidio County, Texas, the Second Known Precise Locality (1965) (0)
Eupatorium rothrockii and E. herbaceum (Compositae) in Texas (1967) (0)
Achyranthes Aspera Linnaeus (Amaranthaceae) in Hidalgo County, New to Texas (1966) (0)
Precise Localities for Rhynchospora Plumosa Elliott in Texas (1965) (0)
A new species of Croton (Euphorbiaceae) widespread in Mexico (1968) (0)
CENCHRUS LONGISETUS M. C. JOHNSTON, NOM. NOV. (GRAMINEAE) (1963) (0)
Carex Folliculata Var. Australis, C. Gracilescens, C. Granularis, C. Tenax and C. Typhina (Cyperaceae) in Texas (1965) (0)
Muhlenbergia pungens Thurber (Gramineae) in Texas Panhandle (1967) (0)
Verification of Occurrence of Juncus Megacephalus M. A. Curtis in Texas (1964) (0)
Re-Discovery of Condalia Velutina I. M. Johnston (Rhamnaceae) at Guanajuato (1966) (0)
Dyssodia Gentryi M. C. Johnston (Compositae), New Species (1958) (0)
Juncus Trigonocarpus Steudel in Henderson County, Texas (1964) (0)
A New Species of Reynosia (Rhamnaceae) from Jamaica (1971) (0)

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