An endangered new species of Podorungia (Acanthaceae), with notes on the tribe Barlerieae in Madagascar

The new species Podorungia gesnerioides Onjalalaina & I. Darbysh. is described and illustrated and it affinities to the other species in the genus are discussed. It is the only species in Podorungia with an open dichasial inflorescence. This new species is assessed as globally "Endangered&q...

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Bibliographic Details
Published inKew bulletin Vol. 71; no. 3; pp. 1 - 7
Main Authors Onjalalaina, Guy Eric, Darbyshire, Iain
Format Journal Article
LanguageEnglish
Published London Springer 01.09.2016
Springer London
Subjects
Biomedical and Life Sciences
Life Sciences
Plant Ecology
Plant Sciences
Plant Systematics/Taxonomy/Biogeography
Masoala
IUCN Red List assessment
Barlerieae
taxonomy
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Summary:The new species Podorungia gesnerioides Onjalalaina & I. Darbysh. is described and illustrated and it affinities to the other species in the genus are discussed. It is the only species in Podorungia with an open dichasial inflorescence. This new species is assessed as globally "Endangered" following the Categories and Criteria of IUCN, because of threats to its lowland forest habitat. The generic delimitation of the Malagasy genera in the tribe Barlerieae is discussed and the similarities of the five endemic genera to the tropical African genus Crabbea are noted. A key to the genera of Barlerieae in Madagascar is provided, based on the key in Benoist's Flore de Madagascar et des Comores account of the Acanthaceae. In addition, a brief review of current progress on the taxonomy of the Acanthaceae of Madagascar is provided.
ISSN:0075-5974
1874-933X
DOI:10.1007/s12225-016-9657-2