Abstract
Sorbus gongshanensissp. nov., a new species from the Hengduan Mountains China, is described and illustrated. It is similar to S. kurzii from China (Yunnan & Xizang), Nepal, and Sikkim in the size of the leaflets, glabrous veins, persistent (sometimes) herbaceous stipules and reddish brown villous inflorescences and red fruits, but differs in its serrate leaflet margins toothed in the distal half or often almost to their base, reddish brown villous to glabrous hypanthium and reddish brown villous infructescences, among other characteristics.
Highlights
Sorbus L. sensu lato (s.l.; Rosaceae) comprises about 260 species distributed in the temperate zone of the Northern Hemisphere (Aldasoro et al 1998; Lu and Spongberg 2003; Zika and Bailleul 2015; Sennikov and Kurtto 2017)
While studying Sorbus for the Flora of Pan-Himalaya Project, we found several accessions from Yunnan and Xizang, China, at the Harvard University Herbarium (GH) that were markedly different from other species of Sorbus
Similar to S. kurzii, but differs in its serrate leaflet margins toothed in the distal half or often almost to their base, reddish brown villous to glabrous hypanthium and reddish brown villous infructescences
Summary
Sorbus L. sensu lato (s.l.; Rosaceae) comprises about 260 species distributed in the temperate zone of the Northern Hemisphere (Aldasoro et al 1998; Lu and Spongberg 2003; Zika and Bailleul 2015; Sennikov and Kurtto 2017). Both molecular (Campbell et al 2007; Lo and Donoghue 2012) and morphological evidence (Zheng and Zhang 2007) suggests that Sorbus s.l. is polyphyletic.
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