Notes on Potentilla (Rosaceae) of Altai. 9. A new species from Kuraisky Ridge
Abstract
Based on morphological characters, a new species Potentilla friesenii collected from alpine belt of Kuraisky Ridge (Altai Mts.) is described. The novelty belongs to Potentilla sect. Chrysanthae; it is most closely related to P. asiatica but differs from the latter by styles not or somewhat widened and smooth to slightly verrucose (vs. always somewhat widened and strongly verrucose) at base as well as the presence of numerous violet glands on sepals. Stability of these differences are confirmed by several years of observation in the wild and in introduction. Illustration of the new species, image of its type specimen, and distribution map are adduced; the area of P. asiatica within Altai Mts. is also presented. A novel morphological feature separating P. asiatica and P. chrysantha is found: staminal ring in P. asiatica (as well as in the new species) is dark violet while it is pale in P. chrysantha. The name P. asiatica is lectotypified.
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