Khaosokia caricoides, a new genus and species of Cyperaceae from Thailand |
| |
| Authors: | DAVID A. SIMPSON fls A. MUTHAMA MUASYA KONGKANDA CHAYAMARIT JOHN A. N. PARNELL fls SOMRAN SUDDEE BART D. E. WILDE MICHAEL B. JONES JEREMY J. BRUHL RACHUN POOMA |
| |
| Affiliation: | Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AB, UK; East African Herbarium, National Museums of Kenya, PO Box 45166–0100, Nairobi, Kenya; Forest Herbarium, National Park, Wildlife and Plant Conservation Department, 61 Phahonyothin Road, Chatuchak, Bangkok 10900, Thailand; Department of Botany, University of Dublin, Trinity College, Dublin 2, Ireland; Botany, Centre for Ecology, Evolution and Systematics, University of New England, Armidale, NSW 2351, Australia |
| |
| Abstract: | 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 C3. 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. © 2005 The Linnean Society of London, Botanical Journal of the Linnean Society , 2005, 149 , 357–364. |
| |
| Keywords: | Cariceae conservation Dulichieae endemic photosynthetic pathway Scirpeae taxonomy |
|
|
