Oberonia stenophylla Ridl.

Bunpha, K., Pedersen, H. Ae. & Sridith, K., 2013, Establishing species distributions in large tropical plant genera: insights from twelve new Thai records of Oberonia (Orchidaceae), Blumea 58 (1), pp. 71-76 : 74

10. Oberonia stenophylla Ridl.

Oberonia stenophylla Ridl. (1896) 218. — Type: Kelsall & Lake s.n. (holo SING), Peninsular Malaysia, Johor, Hulu Sembrong , 30 Oct. 1892.

Oberonia flabellifera Holttum (1947) 284, syn. nov. — Type: Corner/S. F.N. 28162 (not located), Peninsular Malaysia, Johor, Mawai.

Oberonia polyschista Schltr.(1906) 305, syn. nov. — Type: Schlechter 13264 (holo B n.v., probably destroyed), Sumatra, Riau, Indragiri, Sungei Lalah, May 1901.

Oberonia sumatrana Schltr.(1906) 306, syn. nov. — Type: Schlechter 13304 (holo B n.v., probably destroyed), Sumatra, Riau, Indragiri, Danau Kotta, May 1901.

Occurrence in Thailand — Peninsular (Narathiwat). Distribution — Thailand, Peninsular Malaysia and Singapore

(e.g. Seidenfaden & Wood 1992), Sumatra (e.g. Comber 2001),

Java (e.g. Comber 1990), Borneo (e.g. Wood & Cribb 1994).

Specimen examined. THAILAND, Puudjaa 1803 ( BKF), Narathiwat Province ,

Amphoe Waeng, Bala, 25 Apr. 2012.

Notes — 1.A recent collection of this species from peninsular Thailand represents a new national record.

2. Comber (2001) considered the simultaneously described O. polyschista and O. sumatrana conspecific and adopted the former name for the combined species. The holotypes of O. polyschista and O. sumatrana were probably destroyed during the World War II bombing of B, and we have been unable to locate the type of O. flabellifera . However, based on the protologues and on later accounts (e.g. Holttum 1964, Seidenfaden & Wood 1992, Comber 2001), we have little doubt that all three taxa are conspecific with O. stenophylla , and we therefore propose them as new synonyms.