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- Title
Notes on Carex (Cyperaceae) from China (IX): three new species of section Mitratae s.l.
- Authors
Yi-Fei Lu; Zhao-Cen Lu; Yu-Hao Duan; Kun Zhang; Xiao-Feng Jin
- Abstract
Carex sect. Mitratae s.l. was established by Kükenthal in 1909 and can be distinguished from the closely related sections in having nutlets frequently discoid-annulate at the apex and a persistent style base. Based on field surveys and specimen examination, three new species of sect. Mitratae are described and illustrated here. Carex fatsuaniana was collected from Yunnan and differs from C. truncatigluma in having the utricles nearly glabrous, the nutlets with a ca. 0.5 mm long beak at the apex, the staminate spikes cylindrical, 5-7.5 cm long, 4-5 mm wide, and the pistillate glumes acuminate at the apex. Carex damingshanica was collected from Guangxi and differs from C. breviscapa and C. rhynchachaenium in having 3 or 4 spikes, the lateral spikes cylindrical, the pistillate glumes, utricles and nutlets all shorter than in the other two species. Carex radicalispicula was collected from Sichuan and differs from C. truncatirostris in having the staminate spikes clavate, 1.5-2 mm wide, the pistillate glumes pale yellow-white, 3-3.2 mm long, acuminate or short-awned at the apex, and the nutlets with 3 angles shallowly constricted at the middle.
- Subjects
YUNNAN Sheng (China); SICHUAN Sheng (China); GUANGXI Zhuangzu Zizhiqu (China); CAREX; CYPERACEAE; SPECIES; CYPERUS; FIELD research
- Publication
PhytoKeys, 2023, Issue 225, p153
- ISSN
1314-2011
- Publication type
Article
- DOI
10.3897/phytokeys.225.101410