Anales del Jardín Botánico de Madrid, Vol 69, No 2 (2012)

Ethesia tanquana (Ornithogaloideae, Hyacinthaceae), a new species from the Tanqua Karoo (South Africa), with notes on E. haalenbergensis

Mario Martínez-Azorín
CIBIO (Instituto de la Biodiversidad), Universidad de Alicante, Spain

Manuel B. Crespo
CIBIO (Instituto de la Biodiversidad), Universidad de Alicante, Spain


As a part of a taxonomic revision of Ethesia Raf., a new species, E. tanquana Mart.-Azorín & M.B.Crespo, is described from the Tanqua Karoo in South Africa. This new species is at first sight similar to E. haalenbergensis (U.Mu.ll.-Doblies & D.Mu.ll.-Doblies) Mart.-Azorín, M.B.Crespo & Juan and also E. xanthochlora (Baker) Mart.-Azorín, M.B.Crespo & Juan, but it differs in floral and vegetative characters as well as in its ecology and isolated distribution. A complete description, data on biology, habitat, and distribution of the new species are presented. An identification key for Ethesia and new data on the rare Namibian E. haalenbergensis are also given.


Ethesia xanthochlora; distribution; ecology; habitat; taxonomy; Tankwa Karoo

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