Wednesday, August 22, 2018

[Botany • 2018] Thismia kelantanensis (Thismiaceae) • A New Species from Kelantan, Peninsular Malaysia

Thismia kelantanensis  Siti-Munirah

in Siti-Munirah, 2018. 

A new species of Thismiaceae, Thismia kelantanensis Siti-Munirah, found in deep forest in the state of Kelantan, Peninsular Malaysia, is described and illustrated. Thismia kelantanensis is characterised by its mitriform inner tepals, so falls within section Sarcosiphon. This species closely resembles T. clavigera (Becc.) F. Muell. from Malaysia (Sarawak and Langkawi) and Thailand and T. betung-kerihunensis Tsukaya & H. Okada from Kalimantan, Indonesia. However, it differs in flower shape, colour, the warty claviform appendages and the mitriform hood-shaped forms in six parts on its mitre.

Key Words: Dioscoreales, Malesia, mycoheterotroph, new species, taxonomy, Titiwangsa Range 

Fig. 1. Thismia kelantanensis Siti-Munirah.
 A plant habit with mature flower; B flower; C involucral bracts and young bud; D roots E tip of claviform appendages; F warty claviform appendages; G view from above; H filament ribbon-shaped; J – K mitre; L double hoodshaped overlay; M pendulous stamen.
Photos: M. Y. Siti-Munirah.

Thismia kelantanensis Siti-Munirah sp. nov. 

Distribution: Malaysia: Peninsular Malaysia, Kelantan.

Etymology: The epithet refers to the state, Kelantan, where it was found.

Siti-Munirah Mat Yunoh. 2018. Thismia kelantanensis (Thismiaceae), A New Species from Kelantan, Peninsular Malaysia. Kew Bulletin. September 2018, 73:42.  DOI: 10.1007/s12225-018-9767-0