Carex graciliflora Dunn (1908: 372)

Jin, Shui-Hu, Lu, Yi-Fei, Chen, Wei-Jie & Jin, Xiao-Feng, 2022, Notes on Carex (Cyperaceae) from China (VII): new synonyms and imperfectly known species, Phytotaxa 531 (1), pp. 54-62 : 55-56

Carex graciliflora Dunn (1908: 372) . Type:— CHINA. Fokien [Fujian], central Fujian, Sui Kai Kau , Apr. to Jun. 1905, Hongkong Herb. 3657 (holotype: K-000961012!).

= Carex dayunshanensis L.K. Ling & Y.Z. Huang (in Ling, 1995: 689). syn. nov. Type:— CHINA. Fujian, Dehua, Shangyong Xiang , Houzhai Village , 8 Jun. 1989, Y.Z. Huang 188 (holotype: FNU-00036559!), not 198.

= Carex wuyishanensis S. Yun Liang (1996: 94) . syn. nov. Type:— CHINA. Fujian, Chongan [Wuyishan Shi], Mt. Wuyi , from Sangang to Nanshan , 21 Apr. 1955, M.J. Wang 3387 (holotype: PE!).

Carex graciliflora Dunn (1908: 372) , was described as a new species from an immature specimen, which was similar to C. brunnea Thunberg (1784: 38) , and now was placed in sect. Graciles in Roalson et al. 2021. It has not been treated in Flora of China or other Chinese floras to date. The holotype displays pseudo-lateral culms, spikes androgynous, 1–3 in each bract sheath, utricles glabrous, and stigmas 3 (Dunn described as ‘stylus 2-fidus’) ( Figure 2 : A). All these characters revealed that this plant is more related to C. grandiligulata Kükenthal (in Diels, 1905: 9) and C. glossostigma (in sect. Siderostictae Franchet, 1898: 106) than to C. brunnea .

Types of both Carex dayunshanensis L.K. Ling & Y.Z. Huang (in Ling, 1995: 689) and C. wuyishanensis S. Yun Liang (1996: 94) were collected from Fujian Province of SE China. The former was initially reduced to a synonym of C. glossostigma , but the holotype and two paratypes showed leaf blades 4.5–7 mm wide, glabrous, and lax androgynous spikes with 3–7 utricles at the base. The collection by ‘ Y.Z. Huang (Ȓ以ë) 188’ was marked as ‘type’ (equivalent to ‘ 模式标本 ’ or holotype) of C. dayunshanensis but mistakenly numbered as ‘198’ in the protologue ( Figure 2 : B). Compared to the type materials of C. dayunshanensis and C. wuyishanensis with that of C. graciliflora ( Figure 2 ), this resulted in that the former two names have to be reduced to synonyms of the latter.

Figures

FIGURE 2. Types of Carex graciliflora, C. dayunshanensis and C. wuyishanensis. (A): holotype of C. graciliflora in K, (B): holotype of C. dayunshanensis in FNU, (C): spikes of C. graciliflora, (D): spikes of C. dayunshanensis, (E): holotype of C. wuyishanensis in PE, (F): spikes of C. wuyishanensis.