Une nouvelle section du genre Pandanus (Pandanaceae) à Madagascar : Pandanus sect. Tridentistigma

A recent expedition in the north-west Massif of Tsaratanana in Madagascar has allowed us to describe a new section (sect. Tridentistigma), taxonomically and biogeographically isolated in the Madagascan Pandanus. Its stigma is terminated by three teeth, a feature currently known only in the subgenus Rykia from Indomalaysia. This section is the second one growing at high altitude in the northern massif of Madagascar. Its systematic and biogeographic position is discussed.