Stipapennatasubsp.ceynowae (Poaceae, Pooideae), a new taxon from Central Europe

摘要

Based on numerical analyses of macromorphological characters, scanning electron microscopy observation of leaves and lemma micromorphology, as well as field observations, Stipapennatasubsp.ceynowae was described here as a new taxon from Poland. It differs from the most similar S.pennatasubsp.pennata and S.borysthenica mainly by its longer ligules of vegetative shoots. The affinities of this taxon are discussed and a morphological comparison with related species is provided. Illustrations and images of the micromorphological structures, as well as information about its distribution, habitat and conservation status are given.