4. Physospermopsis obtusiuscula (DC.) C.Norman, 1938: 231

Hymenolaena obtusiuscula ≡ Hymenolaena obtusiuscula DC., 1830: 246

Trachydium obtusiusculum ≡ Trachydium obtusiusculum (DC.) C.B.Clarke, 1879: 673

Pleurospermum obtusiusculum ≡ Pleurospermum obtusiusculum (DC.) M.Hiroe, 1979: 741

Aulacospermum obtusiusculum ≡ Aulacospermum obtusiusculum (DC.) A.R.Naqshi, U.Dhar et P.N.Kachroo, 1995: 107

Type.

Nepal. "Ad Gossain-Than Nepalensium, Wallich [543]" (lectotype: G-DC; isolectotypes: BM [BM000622303, BM000944782], K [K000697363], K-WALLICH, LE).

Diagnostic characters.

Physospermopsis obtusiuscula sometimes is flushed. The stems are dark purple-green, simple, and occasionally branched at the base. The fruit ribs are narrowly winged and sinuolate, which is a unique character in Physospermopsis .

Distribution in China.

Sichuan, Tibet, Yunnan (Fig. 4).

Distribution outside China.

Bhutan, India, Nepal, Sikkim.

Habitat.

Physospermopsis obtusiuscula grows in shrubs or grassland at an elevation of ca. 4000 m.

Additional specimens examined.

China. Sichuan Province: Xiangcheng County, 3900 m, 9 Aug 1981, Qinghai-Tibet Expedition 3986 (PE); Xiangcheng County, 9 Aug 1981, Qinghai-Tibet Expedition 3942 (PE) ; Tibet Province: Yadong County, 3500 m, 20 Aug 2019, X.L.Guo G19082009 (SZ); Nyingchi County, 3400 m, 8 Aug 1983, B.S.Li & S.Z.Cheng 6199 (PE); Nyingchi County, Mt. Shergyla, 3346 m, 13 Oct 2009, J.Luo, S.L.Wang & G.Y.Wang LiuJQ-09XZ-388 (KUN); Nyingchi County, Mt. Shergyla, 3346 m, 13 Oct 2009, J.Luo, S.L.Wang & G.Y.Wang LuoJian-ZX-0938 (PE); Yadong County, 3980 m, 14 Sep 1974, Qinghai-Tibet Expedition 74-2505 (PE); Yadong County, 4000 m, 12 Sep 1974, Qinghai-Tibet Expedition 2416 (PE); Nyalam County, 3800 m, 2 Sep 1972, 1736 (PE); Zayue County , 4300 m, 26 Sep 1982, Qinghai-Tibet Expedition 10635 (PE) ; Yunnan Province: Dêqên County, Baimaxueshan, 4100 m, 15 Aug 2019, X.R.Xu XXR2019081502 (SZ); Gongshan County, Dulongjiang, 2900 m, 15 Sep 1938, T.T. Yü 20274 (PE); Gongshan County, Dulongjiang, 3800 m, 9 Aug 1938, T.T. Yü 19829 (PE) .