ORCHIDACEM 109 



Pseudobulbs conical, 2-4 cm. long, clothed by nigropunctate, 

 sheathing bracts. Leaf oblong, acuminate, obtuse, 5-11 cm. long, 

 5-15 mm. wide. Petiole 1-2 cm. long. Peduncle slender, sub- 

 equal to the leaves, 12 cm. long. Raceme loose-flowered, 9-10 

 cm. long, 1 cm. through. Flowers 4 mm. apart. Bracts 3 mm. 

 long, equalling the ovary and pedicel in length. Latercd se2oals 

 oblong-lanceolate, acute, 5-6.5 mm. long, 2 mm. wide, 3-nerved. 

 Upper sepal oblong, subacute, 6 mm. long, 2 mm. wide. Petals 

 elliptic-lanceolate, margin microscopically dentate, 5-5.5 mm. long, 

 2 mm. wide. Labellum 3-lobed, 4 mm. long ; lateral lobes erose- 

 dentate, acuminate, acute ; mid-lobe obovate, cuneate, somewhat 

 emarginate, mucronate, 3-nerved, the lateral nerves branched, and 

 near the base thickened into two linear calli. Column slender ; 

 lateral wings oblong, obtuse, arising from near the middle of the 

 column. Terminal wing subacute, or obtuse, obscurely crenulate. 



D. uncatum resembles very closely D. longisjncatum in the 

 conformation of the flower, but is very distinct from that species 

 in general habit. 



Arayat? central Luzon, A. Loher (no. 459). — On rocks and 

 trees, alt. 2800-3400 m., Lamao River, Prov. Bataan, Luzon, 

 September 21, 1905, H. N. Whitford (no. 1356). — Fls. white, 

 alt. 830 m., Lamao River Forest Reserve, Prov. Bataan, Luzon, 

 October 17, 1906, F. W. Foxworthy (no. 1665). 



Endemic. 



31. D. CLEMENSLE sp. nov. Aff. D. gracili. Pseudobulbi? 

 Folium cum petiolo 2 dm. longum. Lamina 2.8 cm. longa, ob- 

 longi-lanceolata. Pedunculus ad basim infiorescentiae folio ferme 

 aequalis. Inforescentia circa 13 cm. longa, 2 cm. in diametro. 

 Flores 32, distichi, 4—5 mm. distantes. Bracteai 6.5 mm. longse, 

 late ovatse, integrae. Sejmla lateralia oblongi-lanceolata, acuta, 

 7.5 mm. longa, 2.5 mm. lata, 3-nervia. Sepalum dorsale lanceo- 

 latum, lateralibus ferme sequale. Petala sepalis similia, breviora, 

 6-7 mm. longa. Labellum 3-lobatum, 6 mm. longum ; lobi latera- 

 les lineari-triangulares, acuti, circa 2 mm. longi, 1-nervii; medius 



