Pteroceras erosulum H.A.Pedersen 1993 Photo by . Vereinigung Deutscher Orchideenfreunde e.V. Website.

Part Shade Cool Fall

Common Name The Irregularily Toothed Margin Pteroceras [refers tothe wing-like keels on the rachis]

Flower Size 1/4" [7 mm]

Found in northern Borneo in lower montane foretss at elevations around 1200 to 1300 meters as a mini-miniature sized, cool growing epiphyte with an erect stem carrying 6 to 7, extant on flowering shoot, obliquely lanceolate, minutely bilobed, rounded lobes, finely serrate erose leaves that blooms in the fall on 3 to 5, horizontal to erect, .4 to 2.1" [1 to 5.2 cm] long, laterally compressed, somewhat fractiflex, successively 3 to 14 flowered, 1 to 3 open at any one time per inflorescence with each flower node widening into 2 parellel, distinctly erose wings or keels from which the pedicel arises and has broadly triangular, acuminate, scale-like floral bracts.


References W3 Tropicos, Kew Monocot list , IPNI ; A Checklist of the Orchids of Borneo Cribb & Wood 1994; Orchids of Borneo Vol 3 Wood 1997 drawing/photo fide; Rudolf Schlechter Die Orchideen Band 1C lieferung 42 - 43 pg 2626 - 2762 Brieger 2001; The Orchids of Sarawak Beaman, Wood, Beaman & Beaman 2001; Malesian Orchid Journal Vol 5 2010;