Note on the rare terrestrial orchid Apostasia elliptica found in Borneo

Apostasia elliptica J.J. Smith has only been collected twice before, in Sumatra and on the Malay Peninsula. The species has now been found in Borneo. The collection by Bünnemeijer (107) from Sumatra, Westcoast Reserve, Ophir District, N of Talu represents the type and is deposited in BO. The Malay Peninsula collection from Perak, G. Kerbau was made by Md. Haniff (4019). The Bornean material was collected by the author of this note, in Brunei, Temburong District, near the subcamp Pondok Busiri on the way to Bukit Belalong. Specimens of the latter collection are deposited in the herbaria of BRUN, K, and AAU. The determination by A.D. Poulsen and H.AE. Pedersen as A. elliptica using the key in De Vogel (1969) was confirmed by the latter.