Publication de 6 numéros par an
ISSN Imprimer: 0018-8166
ISSN En ligne: 1943-5991
Indexed in
Critical Taxonomic Analysis of Species of the Genus Trapa L. in Flora of Ukraine on Basis of Fruit Morphology
RÉSUMÉ
On the basis of complex studies of the genus Trapa L. in nature and in open and protected beds of the O. V. Fomin Botanical garden, four species were confirmed: T. natans L., T. rossica V. Vassil., T. pseudocolchica V. Vassil., T. borysthenica V. Vassil. Three taxa T. rossica V. Vassil. var. pseudorossica (V. Vassil.) A. Didukh comb. nov., T. rossica V. Vassil. var. ucrainica (V. Vassil.) A. Didukh comb. nov., T. pseudocolchica V. Vassil. var. macrorhiza (Dobrocz.) A. Didukh comb. nov. were proposed to be changed from the species rank to the variety rank. A key for identification of the species and varieties of Trapa in Ukrainian flora was compiled. The main diagnostic and morphological characteristics for identification of species and varieties (mainly of the fruit) have been determined, and those that cannot be used for identification because of high variability or similarity.