74 



ORCHIDACEM 



lahelli angusti basi sigmoidei lobis lateralibus falcatis lamella du- 

 plici apice rotundata interposita intermedio ovali bilineato apice 

 crispo." — Lindley, I. c. 



Pseudobulbs up to 12 cm. long, gradually tapering upwards 

 from a broad base, diphyllous. Leaves oblong-lanceolate, acute, 



1-2 dm. long, 2.5-5 cm. wide, 

 conspicuously nerved, shorter 

 than the elongated flower shoot. 

 Scape up to 24 cm. high to the 

 lowermost node of the zigzag 

 inflorescence. Bracts caducous, 

 glumaceous. Flowers produced 

 in succession, " yellowish, brown 

 and white," 1.5 cm. long. Lat- 

 eral sepals oblong, acute, cari- 

 nate. Upper one similar. Petals 

 linear, exceeding the column, 14 

 mm. long, about 1 mm. wide. 

 Labellum 3-lobed ; lateral lobes oblong, subacute, 6 mm. long to 

 the point of union with the middle lobe, 3 mm. wide ; middle lobe 

 cuneate-obovate ; disc of the labellum bilamellate, the lamellae 

 erect, obliquely truncate at the apex. Column 11 mm. long. 



CcELOGYNK BILAMELLATA 



Epiphyte on trees and rocks, Biga Creek, alt. 200 ft., Prov. 

 Surigao, Mindanao, April 6, 1906, F. H. Bolster (no. 288). 



The type specimen in Lindley's Herbarium collected by Cuming 

 in the Philippines is most inadequate for a sure diagnosis, as the 

 flowers are missing. The drawings made by Lindley, however, 

 serve in a measure to assist in determination. The terminal lip- 

 lobe in Lindley's specimen appears to have been narrower than in 

 the specimens collected in Mindanao by Bolster, and the lateral 

 lobes somewhat shorter. In other respects the material on which 

 my determination is based agrees too well with Lindley's to be 

 identified as anything else. 



Borneo (Matang, 3000 ft. alt.). 



