ORCHIDACEiE 



8-13 mm. long, equaling or exceeding the flowers. Flowers large, 

 brownish-yellow. Lateral sepals 7-8 mm. long, oblong-lanceolate 

 or triangular-lanceolate, acute, lightly carinate at the tip. Dorsal 

 sepal similar, 7 mm. long. Petals 7 mm. long, oblong, acute. La- 

 bellum three-lobed, 4 mm. long, reflexed ; lateral lobes triangu- 

 lar, acute, subsetaceous at the tip, from sinus to tip about 1 mm. 

 long; middle lobe somewhat cuneate at base, dilated into a round 

 or suborbicular plate 3 mm. wide, 2 mm. long above the claw, 

 when apiculate, obscurely so, middle nerve raised but evanescent 

 beyond the lateral lobes, otherwise the disc is bicarinate to the 

 middle. Margin of the lip wholly entire. Gynostemium about 

 3 mm. long, with subulate lateral arms about 1 mm. long, aris- 

 ing from the sides of the column just below the stigmatic ori- 

 fice, hardly equaling the rostellum. Terminal wing elongated, 

 rounded at the tip or obscurely retuse or irregularly three-lobed, 

 the lobes blunt. 



A large plant allied to Dendrochilum latifolium Lindl., Z). 

 hracteosum Reichb. f., and D. Dewindtianum W. W. Sm., but 

 very distinct in the structure of the flower and clearly separable 

 by means of the large bracts which nearly conceal the flowers. 

 The raceme is very similar to that of Dendrochilum cagayanense 

 Ames, which has a very dissimilar labellum. D. Dewindtianum 

 W. W. Sm. differs from D. imbricatmn in its much shorter floral 

 bracts, larger labellum, and longer stelidia. D. oxijlohum Schltr. is 

 a near ally, but differs from D. imbricatum in the details of the 

 gynostemium and labellum and . in the relative lengths of the 

 floral bracts and the flowers. (Plate 82.) 



KiNABALU, Clemens 179 (Type), November 1915. 3000 feet altitude. 

 KiAU, Clemens 318, November 1915. 2000-5000 feet altitude. 



13. Dendrochilum Joclemensii A7nes sp. nov. Rhizoma re- 

 pens, vaginis omnino obtectum, radicibuselongatis. Pseudobulbi 



[55] 



