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The Genus Sartidia (Poaceae: Aristidoideae) in Madagascar

Research output: Contribution to Journal/MagazineJournal articlepeer-review

  • Maria S. Vorontsova
  • Thomas Haevermans
  • Agathe Haevermans
  • Jacqueline Razanatsoa
  • Marjorie R. Lundgren
  • Guillaume Besnard
<mark>Journal publication date</mark>08/2015
<mark>Journal</mark>Systematic botany
Issue number2
Number of pages6
Pages (from-to)448-453
Publication StatusPublished
Early online date1/08/15
<mark>Original language</mark>English


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.