Id%Version%Standard form%Default author forename%Default author surname%Taxon groups%Dates%Alternative names 10947-1%1.4%Tzvelev%Nikolai Nikolaievich%Tzvelev%Spermatophytes, Pteridophytes%1925-2015%Tsvelov, Nikolai Nikolaievich; Tsvelev, Nikolai Nikolaievich; Tsvelyov, Nikolai Nikolaievich