Carex yangchunensis, a new species of Cyperaceae from the limestone regions of Guangdong, South China

Authors: Yi-Fei, Lu Country: People's Republic of China DOI: 10.3897/phytokeys.251.142179 Published: Jan. 1, 2025 Source: PhytoKeys OpenAlex: View in OpenAlex

Collection: Pensoft Publishers

Keywords: Carex sect. Cryptostachyae · Topics: Botany, Ecology, and Taxonomy Studies, Botany and Plant Ecology Studies, Plant and Fungal Species Descriptions

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Carex yangchunensis (Cyperaceae), a new species of Carex sect. Cryptostachyae in limestone regions of Guangdong, China, is described and illustrated. Both morphological observation and molecular analysis revealed that the new species was similar to C. cryptostachys, but differs in having inflorescence with 4–8 spikes, ovoid or nearly globose, 3–8 mm long, utricles (2.5–3.5 mm long) and nutlets (2–2.2 mm long) shorter, style base thickened, leaves narrower, 3–6 mm wide and culms 8–25 cm tall. Scanning electron micromorphology of utricles and nutlets of the new species and the related species C. cryptostachys are provided.

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