中国广西薹草属(莎草科)一新种——大苗山薹草(英文)

Carex damiaoshanensis X. F. Jin & C. Z. Zheng, a new species of Cyperaceae from Guangxi, China

描述了我国广西大苗山莎草科Cyperaceae一新种——大苗山薹草Carex damiaoshanensis X. F. Jin & C. Z. Zheng。本种形态上与花葶薹草C. scaposa C. B. Clarke接近, 区别主要在秆、秆生叶和支花序轴均无毛, 支花序数较少, 小穗疏生雌花。对秆、支花序梗、秆生叶和小坚果扫描电镜观察也显示了这二者的区别。

Carex damiaoshanensis X. F. Jin ＆ C. Z. Zheng, a new species of Cypemceae from Guangxi, China, is described and illustrated. This new species resembles C. scaposa C. B. Clarke in its arundinaceous leaves and spikes arranged in a compound panicle, but differs from the latter in having glabrous culms, cauline leaves, and rachises of secondary inflorescences, panicle with fewer secondary inflorescences, and spikes with sparse pistillate flowers. Micromorphology of culms, cauline leaves, peduncles of secondary inflorescences, and achenes under SEM supports the recognition of this new species as well.