Thismiamalayana (Thismiaceae), a new mycoheterotrophic species from Peninsular Malaysia

A new species of the mycoheterotrophic genus Thismia from Malaysia is described and illustrated. Thismiamalayana introduced here was found in two localities: in the lowlands of Gunung Angsi Forest Reserve, Negeri Sembilan, and in the hilly dipterocarp forests of Gunung Benom in Tengku Hassanal Wildl...

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Bibliographic Details
Published in:PhytoKeys 2024-05, Vol.242, p.229-239
Main Authors: Siti-Munirah, Mat Yunoh, Hardy-Adrian, Chin, Mohamad-Shafiq, Sharipudin, Irwan-Syah, Zainuddin, Hamidi, Abd Halim
Format: Article
Language:English
Subjects:
Asia
Burmanniaceae
Dioscoreales
Taxonomy
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Description
Summary:A new species of the mycoheterotrophic genus Thismia from Malaysia is described and illustrated. Thismiamalayana introduced here was found in two localities: in the lowlands of Gunung Angsi Forest Reserve, Negeri Sembilan, and in the hilly dipterocarp forests of Gunung Benom in Tengku Hassanal Wildlife Reserve, Pahang. Thismiamalayana falls into the section Thismiasubsect.Odoardoa, as it has creeping vermiform roots and free equal tepals. It is characterised by the following taxonomically important features: a sepia-brown, urceolate-curved floral tube, free equal tepals with terminal appendages, prominent bright yellow annulus and bright violet-blue stamens each bearing five appendages (one pair of club-shaped inwards-pointing, one pair of acute outwards-pointing, and one central appendage). According to the categories and criteria of the IUCN Red List, T.malayana is provisionally classified as Vulnerable.
ISSN:1314-2011
1314-2003
DOI:10.3897/phytokeys.242.120967