German/Italian
proposed methods of data analysis that would revolutionize systematics
Who is Willi Hennig?
put forth the system of binomial nomenclature
Who is Carolus Linnaeus?
This North American Botanist is considered the Father of Botany
Who is Asa Gray?
in 1689, first to suggest existence of plant families
Who is Pierre Magnol?
This person proposed the theory of evolution by natural selection
presented use of synapomorphies to diagnose monophyletic groups
Who is Willi Hennig?
Held the idea that almost all plants belonged to genera with 2 or more species
Who is Conrad Gessner?
Proposed methods of data analysis known as Occam's Razor
Who is Warren "Herb" Wagner?
First to provide clear guidelines for describing genera, that all characters used should be recognizable in all members, and aimed for "natural groups"
First author of Genera Plantarum
George Bentham
diagram of “genealogical-geographical” map of 1792
Who is Paul Dietrick Giseke?
devised diagrams that represented cross-sections of phylogenetic trees
Who is Rolf Dahlgren?
This person died in the BYU herbarium
Who is Arthur Cronquist?
His classification is the basis of our current classification system
Who is Antoine-Laurent de Jussieu?
A knighted gentleman who was one of two to author three volume Genera Plantarum
Physician and Botanist who first outlined the principles of classification
Who is Andreas Caesalpinus?
purported genera to be more natural than species
Who is Augustus Pyramus de Candolle?
This person's plant classification was accepted for decades and largely in place until the advancement of phylogenetics
Who is Arthur Cronquist?
suggested that classification characters could be different from those used for id
Who is Jean-Baptiste-Pierre Antoine de Monet de Lamarck?
His ideas formed the basis of Phenetics or Numerical Taxonomy
Who is John Scott Lennox Gilmour
produced a classification system based on Jussieu’s but differed in that monocots and dicots viewed as parallel, not in series
Who is Heinrich Gustav Adolf Engler?
emphasized need for analysis, looking for features that characterized groups, often subordinate to other characters
Who is Augustus Pyramus De Candolle?
Major aim to indicate relative "highness" and "lowness" of groups through trends in advancement of traits
Who is Charles Edwin Bessey
provided series of tabulations showed that every plant characteristic varied within natural groups and concluded that no one character was enough for classification, but required multiple
Who is Michel Adanson?
He strongly promoted the idea that the best classification has maximum general utility
Who is John Scott Lennox Gilmour?