What is Nikolai Tzvelev?
'''Nikolai Nikolayevich Tzvelev''' (also romanized Nikolái Tsveliov; '''{{lang-ru|Никола́й Никола́евич Цвелёв}}''') (January 31 (according to the passport February 3) 1925, Tambov - July 19, 2015, [[Saint_Petersburg| St. Petersburg]]) was a Russian botanist, a specialist in the field of systematics, floristry, morphology and evolution of vascular plants. He was a corresponding member of the [[Russian Academy of Sciences]] (2000) . Among his most important scientific achievements is a critical revision of the taxonomy of the [[Poaceae|grass family]], a study of the problems of the origin of this taxon and its further evolution. He recognized ''Korringia'' as a genus, when Anna Prokofevna Czukavina described it only as a sect. of [[Polygonum]]. This author is usually abbreviated «Tzvelev» when citing a [[botanical name]]. ==Taxa by Tzvelev== ''Arctanthemum arcticum'' (L.)Tzvelev. <gallery> File:Arctanthemum_arcticum_kz04.jpg|Arctic daisy File:Chrysanthemum_from_lalbagh7242.JPG|A chrysanthemum </gallery> ==Works== 2007 Vascular Plants of Russia and Adjacent States (the Former USSR) {{wikispecies}} {{authority control}} {{DEFAULTSORT:Tzvelev, Nikolai}} [[Category:Russian botanists]] [[Category:1925 births]] [[Category:2015 deaths]]