期刊
SYSTEMATIC BOTANY
卷 40, 期 2, 页码 448-453出版社
AMER SOC PLANT TAXONOMISTS
DOI: 10.1600/036364415X688367
关键词
Aristida; C-3; C-4; grasses; new species; Stipagrostis
资金
- UK SynTax
- BBSRC
- NERC
- National Geographic Society Global Exploration Fund [GEFNE10-11]
- SYNTHESYS program [FR-TAF-2694]
- LABEX
The uncommon southern African and Malagasy genus Sartidia in the Aristidoideae, Poaceae resembles the closely related Aristida but has a C-3 photosynthetic system, 3-5-veined lower glumes, and a ventrally grooved caryopsis. We present a revision of Sartidia in Madagascar with two species. Sartidia isaloensis is described as new based on its interrupted inflorescence structure, small spikelets, and short awns. A leaf anatomical study and a delta C-13 analysis confirm that S. isaloensis is a C-3 species. Sartidia perrieri is likely extinct in the wild. We present descriptions, typification, illustrations, distribution maps, an identification key, and IUCN conservation assessments. A key to the Aristidoideae in Madagascar is also included.
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