Warren H. Wagner (August 29, 1920 - January 8, 2000) was an eminent American botanist who lived in Michigan. A longtime faculty member at the University of Michigan (Ann Arbor), he developed, in the early 1960s, the first algorithm for discerning phylogenetic relationships among species based upon their respective character states observed over a set of characters. This work was honored by James Farris and Arnold Kluge in their later appellation of related algorithms as "Wagner parsimony." August 29 is the 241st day of the year in the Gregorian Calendar (242nd in leap years), with 124 days remaining. ... 1920 (MCMXX) is a leap year starting on Thursday (link will take you to calendar) // Events January January 7 - Forces of Russian White admiral Kolchak surrender in Krasnoyarsk. ... January 8 is the 8th day of the year in the Gregorian Calendar. ... This article is about the year 2000. ... Botany is the scientific study of plant life. ... State nickname: The Wolverine State, The Great Lakes State Other U.S. States Capital Lansing Largest city Detroit Governor Jennifer Granholm (D) Senators Carl Levin (D) Debbie Stabenow (D) Official language(s) English de-facto Area 96,889 mi² / 250,941 km² (11th)  - Land 56,855 mi² / 147,255 km... University of Michigan, Ann Arbor The University of Michigan, Ann Arbor (U-M) is a public coeducational university in Michigan, United States. ... A phylogeny (or phylogenesis) is the origin and evolution of a set of organisms, usually of a species. ... Maximum parsimony is a simple but popular technique used in cladistics to predict an accurate phylogenetic tree for a set of taxa (commonly a set of species or reproductively-isolated populations of a single species). ...

Wagner specialized in the ferns, especially the Botrychiaceae. The standard botanical author abbreviation W.H.Wagner is applied to species he described. Classes Marattiopsida Osmundopsida Gleicheniopsida Pteridopsida A fern, or pteridophyte, is any one of a group of some twenty thousand species of plants classified in the Division Pteridophyta, formerly known as Filicophyta. ... The Botrychiaceae (moonwort family) is a small family of three genera in the order Ophioglossophyta. ... In biology, binomial nomenclature refers to the formal method of naming species. ... In biology, the most commonly used definition of species was first coined by Ernst Mayr. ...

Apparently among modern phylogenetic systematists, Wagner is alone in having been mentioned in a Hollywood film (A New Leaf, starring Elaine May and Walter Matthau). ... Elaine May (b. ... Walter Matthau (October 1, 1920 – July 1, 2000) was an Jewish American comedy actor. ...

External link

Wagner's biography

WAGNER