期刊
BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
卷 149, 期 3, 页码 357-364出版社
BLACKWELL PUBLISHING
DOI: 10.1111/j.1095-8339.2005.00446.x
关键词
Cariceae; conservation; Dulichieae; endemic; photosynthetic pathway; Scirpeae; taxonomy
Khaosokia caricoides, D.A. Simpson, Chayam. & J. Parn., a newly discovered genus and species of Cyperaceae is described and illustrated. The genus is characterized by a narrowly paniculate dioecious inflorescence with 2-4 nodes, each of the nodes having a leaf-like inflorescence bract that exceeds the inflorescence. Spikelets in both sexes are linear-cylindric and each flower has seven perianth bristles. The nutlet was immature in the specimens examined. The photosynthetic pathway is C-3. Khaosokia is endemic to limestone cliffs in peninsular Thailand; its conservation status is assessed as Vulnerable (VU B1a + 2a). It has affinities to tribes Cariceae, Dulichieae and some members of Scirpeae, but the exact nature of these relationships has yet to be determined. A revised key to the genera of Cyperaceae in Thailand is presented. (c) 2005 The Linnean Society of London.
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