The Genus Sartidia (Poaceae:Aristidoideae) in Madagascar

Vorontsova, Maria S. and Haevermans, Thomas and Haevermans, Agathe and Razanatsoa, Jacqueline and Lundgren, Marjorie R. and Besnard, Guillaume (2015) The Genus Sartidia (Poaceae:Aristidoideae) in Madagascar. Systematic botany, 40 (2). pp. 448-453. ISSN 0363-6445

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Abstract

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.

Item Type:
Journal Article
Journal or Publication Title:
Systematic botany
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1300/1311
Subjects:
ID Code:
128335
Deposited By:
Deposited On:
22 Oct 2018 15:00
Refereed?:
Yes
Published?:
Published
Last Modified:
12 Aug 2020 08:09