2. Physospermopsis rubrinervis (A.R.Franchet) C.Norman, 1938: 231

Trachydium rubrinerve ≡ Trachydium rubrinerve A.R.Franchet, 1894: 112

Pleurospermum rubrinerve ≡ Pleurospermum rubrinerve (A.R.Franchet) M.Hiroe, 1979: 747

Type.

China. Yunnan: Eryuan County, Mt. Luoping, 3200 m, 31 Aug 1888, Delavay 3235 (holotype: P [P00245453]; lectotype, designated by Pimenov 2017, pg. 188: P [P00245453]; isolectotypes: K [K001235378], P [P00245454, P00834665]) .

Diagnostic characters.

Physospermopsis rubrinervis usually possesses dark purple, sparsely branching stems. The basal blade is ovate to broadly ovate in outline, having almost purple-red nerves.

Distribution in China.

Sichuan, Yunnan (Fig. 4).

Distribution outside China.

India, Nepal.

Habitat.

This species grows in the forest edge or rhododendron shrubs at an elevation of 2800-4800 m.

Additional specimens examined.

China. Sichuan Province: Yanbian County, Yankou xiang, 3150 m, 20 Sep 2002, X.F.Gao, Y.L.Peng & G.Sun 3753 (PE); Meigu County, Ligou xiang, 3600 m, 5 Aug 1959, 1591 (SM); Butuo County, Wuke pasture, 3500 m, 1 Jul 1976, Vegetation expedition 13827 (CDBI); Dukou County, Mt. Dahei, 1400 m, 18 Jun 1983, Qinghai-Tibet Expedition 11231 (KUN); Puge County, 9 Aug 1960, Anonymous 25099 (SM) ; Yunnan Province: Eryuan County, Mt. Luoping, 3200 m, 17 Aug 2019, X.R.Xu XXR2019081701 (SZ); Lushui County, 3000 m, 18 Oct 2019, X.L.Guo G19101802 (SZ); unknown locality, 21 Sep 1959, S.G.Wu 2715 (KUN) .