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Description of 11 new Astiella (Spermacoceae, Rubiaceae) species endemic to Madagascar

Inge GROENINCKX, Steven JANSSENS, Erik SMETS & Brecht VERSTRAETE

en European Journal of Taxonomy 2017 - Pages 1-40 (EJT-312)

Publié le 25 avril 2017

Description of 11 new Astiella (Spermacoceae, Rubiaceae) species endemic to Madagascar

Astiella is an herbaceous genus endemic to Madagascar, originally described with a single species A. delicatula Jovet. Molecular and morphological evidence place it in the tribe Spermacoceae s. lat. of Rubiaceae. During herbarium studies and fieldwork in Madagascar, 11 new Astiella species were identified and these are described here: A. antongilensis Groeninckx sp. nov., A.antsalovansis Groeninckx sp. nov., A. confusa Groeninckx sp. nov., A. deblockiae Groeninckx sp. nov., A.desseinii Groeninckx sp. nov., A. homolleae Groeninckx sp. nov., A. latifolia Groeninckx sp. nov., A.longifimbria Groeninckx sp. nov., A. perrieri Groeninckx sp. nov., A. pulla Groeninckx sp. nov., and A.tsaratanensis Groeninckx sp. nov. The genus Astiella now holds 12 species in total that are all endemic to Madagascar.

Mots-clés :

Astiella, endemism, Madagascar, Rubiaceae, Spermacoceae s. lat.

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