×Kengdoroegneria, nothogen. nov., and new nomenclatural combinations in Triticeae (Poaceae)
2023
Ihor G. OLSHANSKYI
The system of the family Poaceae is dynamically changing due to the progress of phylogenetic research. Consequently, nomenclature of some taxa should be adjusted accordingly. In the Plants of the World Online (POWO) and some other authoritative online sources, some genera and nothogenera are accepted in rather wide circumscriptions; for example, ×Agroelymus E.G. Camus ex A. Camus (including ×Agrotrigia Tzvelev and ×Elymopyrum Cugnac), ×Elyleymus B.R. Baum (with synonyms ×Leymotrigia Tzvelev and ×Leymotrix Kharkev. & Prob.), and Elymus L. (including Elytrigia Desv. and ×Elymotrigia Hyl.). However, Pseudoroegneria (Nevski) Á. Löve and Kengyilia C. Yen & J.L. Yang are now commonly recognized as separate genera. If we accept these taxonomic concepts, several nomenclatural combinations are needed. Thus, some of them are proposed here. I propose a new nothogenus ×Kengdoroegneria Olshanskyi for intergeneric hybrids between species of Kengyilia C. Yen & J.L. Yang and Pseudoroegneria (Nevski) Á. Löve. Also, nine nomenclatural combinations in ×Agroelymus, ×Elyleymus, Elymus, and ×Kengdoroegneria are validated.
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