Parnassia trinervis Drude (1875: 322)

Shu, Yumin, Yu, Huiying, Mu, Xianyun & Zhang, Zhixiang, 2017, Checklist and typification of Parnassia (Celastraceae), Phytotaxa 309 (1), pp. 1-22 : 11

Parnassia trinervis Drude (1875: 322)

TYPE:— INDIA. Tibetia occidentalis, in regionis alpinae altitudine 9–15000 ft, Hooker et Thompson s.n. (lectotype designated here: K 000739358)

= Parnassia viridiflora Batalin (1892: 168) ≡ Parnassia laxmannii var. viridiflora (Batalin) Franchet (1897: 261) ≡ Parnassia trinervis var. viridiflora (Batalin) Handel-Mazzetti (1931: 133)

TYPE:— CHINA. Sichuan, ‘ ad fonts fl. Atu-lunva ’, 10 August 1885, G. Potanin s.n. (lectotype designated here: P06392776 ) ; CHINA. Sichuan, ‘ ad fluv. Honton-lunva ’, 10 August 1885, G. Potanin s.n. (syntype: K000739459 ) ; CHINA. Kansu, ‘ ad fonts fl. Mudshik in limosis frequens ’, 9500 ft, flor. 17(29) June 1880, N. M. Przewalski s.n. (syntype: K, not barcoded)

= Parnassia rumicifolia Brieger (1922: 401)

TYPE:— CHINA. Tibet, ‘ Tatsienlu Grasmatten um Sheto ’, 3500 m, anonymous 1707 (syntypes: not located) ; CHINA. Shaanxi, Tsin-ling, Taibaishan, Tempel You-wang-tsche, 3300 m, anonymous 2751 (syntypes: not located)

= Parnassia humilis T.C. Ku (1987: 27)

TYPE:— CHINA. Xizang, Amdo , 5000 m, 30 July 1973, X. J. Yang 1985 (holotype: PE01842920 ; isotypes: HNWP57228 , KUN0437489 )

Notes: Drude described Parnassia trinervis based on specimens collected by Hooker and Thompson from Tibet without the collection number. Hooker and Thompson collected many specimens from Tibet without collection numbers, and there are many specimens matched the collection information. The length of the scape of P. trinervis was described as 4 cm in the protologue, and only one sheet matched this description. Thus, we designated it as the lectotype. Five collections were given in the protologue of P. viridiflora , among which we found three sheets that agreed well with the description. Therefore, the best presented one is selected as the lectotype here.