Harlan Lewis | Academic Influence

Harlan Lewis's AcademicInfluence.com Rankings

Harlan Lewis

Biology

#2580

World Rank

#4093

Historical Rank

#1115

USA Rank

Botany

#370

World Rank

#1176

Historical Rank

#96

USA Rank

biology Degrees

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Biology

Harlan Lewis's Degrees

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

Why Is Harlan Lewis Influential?

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According to Wikipedia, Frank Harlan Lewis was an American botanist, geneticist, taxonomist, systematist, and evolutionist who worked primarily with plants in the genus Clarkia. He is best known for his theories of "catastrophic selection" and "saltationalal speciation", which are closely aligned with the concepts of quantum evolution and sympatric speciation. The concepts were first articulated in 1958 by Lewis and Peter H. Raven, and later refined in a 1962 paper by Lewis in which he coined the term "catastrophic selection". In 1966, he referred to the same mechanism as "saltational speciation".

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Harlan Lewis'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 Papers

CATASTROPHIC SELECTION AS A FACTOR IN SPECIATION (1962) (239)
The genus Clarkia (1956) (237)
THE EVOLUTION OF SELF‐POLLINATION IN CLARKIA XANTIANA (1965) (159)
THE BREEDING GROUP AND SEED STORAGE: A STUDY IN POPULATION DYNAMICS (1960) (149)
THE MECHANISM OF EVOLUTION IN THE GENUS CLARKIA (1953) (124)
The Origin of Diploid Neospecies in Clarkia (1973) (96)
RAPID EVOLUTION IN CLARKIA (1958) (80)
THE ORIGIN OF SUPERNUMERARY CHROMOSOMES IN NATURAL POPULATIONS OF CLARKIA ELEGANS (1951) (76)
A COMPARATIVE STUDY OF MITOSIS IN THE ONAGRACEAE (1962) (70)
Experimental Sympatric Populations of Clarkia (1961) (67)
INCREASE OF THE ADAPTIVE RANGE OF THE GENUS DELPHINIUM (1952) (58)
THE ORIGIN OF CLARKIA UNGULATA (1956) (57)
The Centers of Distribution of the Chaparral and Coastal Sage Associations (1942) (47)
DELPHINIUM GYPSOPHILUM, A DIPLOID SPECIES OF HYBRID ORIGIN (1959) (45)
THE TAXONOMIC SIGNIFICANCE OF AUTOPOLYPLOIDY (1967) (44)
CHROMOSOME PHYLOGENY AND HABITAT PREFERENCE OF CLARKIA (1953) (37)
Chromosomes of Salvia: Section Audibertia (1962) (33)
PLANT GROWTH UNDER CONTROLLED CONDITIONS. IV. RESPONSE OF CALIFORNIA ANNUALS TO PHOTOPERIOD AND TEMPERATURE (1945) (33)
New combinations in the genus Clarkia (Onagraceae) (1992) (20)
Terpenes as taxonomic characters in Salvia section Audibertia (1967) (17)
SUBSPECIATION IN CLARKIA BILOBA (1955) (16)
TRANSLOCATION HETEROZYGOTES AND SUPERNUMERARY CHROMOSOMES IN WILD POPULATIONS OF CLARKIA WILLIAMSONII (1968) (16)
The Adaptation to Serpentine Soils in California of the Annual Species Linanthus androsaceus (Polemoniaceae) (1975) (16)
Natural Hybridization between Epilobium adenocaulon and E. brevistylum (1962) (15)
Chromosome Numbers of Californian Delphiniums and Their Geographical Occurrence (1951) (15)
A revision of the genus trichostema (1945) (14)
Evolutionary Processes in the Ecosystem (1969) (13)
Variation and evolution in South American Clarkia (1966) (11)
CHROMOSOME NUMBERS IN MENTZELIA (LOASACEAE) (1955) (10)
The genus gayophytum (Onagraceae) (1964) (10)
The Nature of Plant Species (1959) (9)
Chromosome numbers and phylogeny of Trichostema (1960) (9)
GENETICS AND CYTOLOGY IN RELATION TO TAXONOMY (1957) (7)
THE GENUS TRICHOSTEMA (LABIATAE) IN MEXICO (1978) (6)
Leaf Variation in Delphinium variegatum (1947) (5)
The relationship of clarkias from two continents (1959) (4)
Description of a New Section and Subsection in Clarkia (Onagraceae) (1986) (3)
TRICHOSTEMA RUYGTII (LAMIACEAE): A NEW SPECIES FROM NAPA COUNTY, CALIFORNIA (2006) (3)
Three Species Pairs from Southern and Lower California (1940) (3)
REPORT ON THE ELEVENTH ANNUAL MEETING OF THE SOCIETY FOR THE STUDY OF EVOLUTION (1957) (3)
A taxonomic study of Californian delphiniums (1954) (3)
TENTH ANNUAL MEETING: SOCIETY FOR THE STUDY OF EVOLUTION (1955) (3)
A CYTOTAXONOMIC APPROACH TO ESCHSCHOLTZIA (1951) (3)
Observations on the Chromosomes and Relationships of Hauya and Xylonagra (1960) (2)
NEW SPECIES AND CHANGES IN NOMENCLATURE IN THE GENUS CLARKIA (ONAGRACEAE) (1953) (2)
Clarkia franciscana, a new species from Central California (1958) (1)
Contemporary Botanical Thought. A series of lectures arranged by the Botanical Society of Edinburgh. Anna M. MacLeod and L. S. Cobley, Eds. Quadrangle Books, Chicago, Ill., 1961. ix + 197 pp. Illus. $6.50 (1962) (1)
Noisture Conservation in Relation to Erosion Control Under Red Plains Conditions in the Southwest (1935) (0)
REVIEWERS OF MANUSCRIPTS, 1978 (1978) (0)
Prolamin genes of cereals - multigene families with unusual molecular-structure (1984) (0)
A NEW SPECIES OF CLARKIA (ONAGRACEAE) (1953) (0)
620. TRICHOSTEMA LANATUM (2008) (0)
COMMENTS ON EVOLUTIONARY LITERATURE (1951) (0)
Book Review:Origin and Relationships of the California Flora. Peter H. Raven, Daniel I. Axelrod (1979) (0)
Synthesis by Topic: Contemporary Botanical Thought . A series of lectures arranged by the Botanical Society of Edinburgh. Anna M. MacLeod and L. S. Cobley, Eds. Quadrangle Books, Chicago, Ill., 1961. ix + 197 pp. Illus. $6.50. (1962) (0)
REPORT ON THE TWELFTH ANNUAL MEETING OF THE SOCIETY FOR THE STUDY OF EVOLUTION, AUGUST 26, 1957 (1958) (0)

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