Carex jianfengensis (Carex sect. Rhomboidales, Cyperaceae), a New Species from Hainan, China

Hubiao Yang; Xiaoxia Li; Wenqiang Wang; Changjun Bai; Guodao Liu

doi:10.1371/journal.pone.0136373

Carex jianfengensis (Carex sect. Rhomboidales, Cyperaceae), a New Species from Hainan, China

PLoS One. 2015 Sep 23;10(9):e0136373. doi: 10.1371/journal.pone.0136373. eCollection 2015.

Authors

Hubiao Yang¹, Xiaoxia Li², Wenqiang Wang¹, Changjun Bai¹, Guodao Liu¹

Affiliations

¹ Tropical Crops Genetic Resources Institute, Chinese Academy of Tropic Agricultural Sciences, Danzhou, Hainan, People's Republic of China.
² Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, People's Republic of China.

Abstract

A new species of Carex sect. Rhomboidales, C. jianfengensis, is described and illustrated from Hainan, China. The new species is similar to C. zunyiensis but differs in having involucral bracts sparsely hispid and with ca.1 cm long sheaths; inflorescence with 4 spikes, terminal spike ca. 2.5 cm long, lateral spikes 2-3.5 × 0.7-1 cm; staminate glumes narrowly ovate, ca. 5 mm; pistillate glumes triangular-lanceolate, 5-7 mm; perigynia 6-8 × 3 mm and pubescent on veins; nutlet 4-5 mm long, rhombic-ovoid, trigonous, base with shortly stipitate, apex abruptly contracted into a erect short beak, and not expanding into an annulate orifice.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Carex Plant / classification*
China

Grants and funding

This research was financially supported by the Basic Scientific Research Business Expenses (1630032014030), the Earmarked Fund for China Agriculture Research System (CARS-35-03) and the project of tropical forage germplasm resources protection (14RZZY-09). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.