Mitrephora sirikitiae (Annonaceae): a remarkable new species endemic to northern Thailand
ABSTRACT A new species of Annonaceae, Mitrephora sirikitiae, is described from Mae Hong Son Province in northern Thailand. It is easily distinguished from the seven species of Mitrephora previously recorded from Thailand due to its very large, showy flowers. It is most similar to M. winitii, but differs in its larger flowers, with inner petals that become undulate at maturity. The profuse blooming of the new species and its large flowers with mild fragrance suggest that may be of significant horticultural potential.
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ABSTRACT: A comprehensive taxonomic revision of Goniothalamus species (Annonaceae) occurring in Thailand is presented for the first time. Twenty-five species are recognized, including three that are described as new to science (Goniothalamus aurantiacus from South-Western Thailand, Goniothalamus maewongensis from Northern Thailand, and Goniothalamus rongklanus from Northern and North-Eastern Thailand). Several taxonomic and nomenclatural misunderstandings are corrected. The name G. griffithii is shown to be widely misapplied for populations in Northern Thailand, for which the name G. calvicarpus should be applied; ‘true’G. griffithii is restricted to South-Western Thailand and Myanmar. In addition, the widely used name G. marcanii is shown to be a synonym of G. tamirensis, and the name G. latestigma, previously regarded as a synonym of G. undulatus, is reinstated. Goniothalamus cheliensis is furthermore newly recorded from Thailand. Most species are restricted to Peninsular Thailand and represent a Malesian floristic component. © 2008 The Linnean Society of London, Botanical Journal of the Linnean Society, 2008, 156, 355–384.Botanical Journal of the Linnean Society 01/2008; 156(3). · 2.59 Impact Factor