ORCHIDACE^ 



long, about 1 cm. wide, linear-lanceolate, obtuse, apiculate, shortly 

 petiolate, shorter than the slender peduncle, rigid when dry. 

 Peduncle up to 3 dm. long. Raceme about 2 dm. long, less than 

 1 cm. in diameter. Flowers greenish-yellow, small. Bracts 2 mm. 

 long, hardly clasping the pedicellate ovary which they equal. Lat- 

 eral sepals 5 mm. long, 1.5 mm. wide, triangular-lanceolate, acute, 

 three-nerved. Dorsal sepal 6 mm. long, lanceolate, acuminate, 

 acute, shghtly concave, three-nerved. Petals similar, 4.25 mm. 

 long, but slightly narrower, one-nerved with short lateral nerves, 

 minutely denticulate on the margin. Labellum 4 mm. long, simple, 

 lanceolate, acuminate, acute, very minutely ragged, fringed or 

 denticulate above the middle, three-nerved, very mobile, weakly 

 attached to the base of the gynostemium, bicallose at the base, 

 the calli passing posteriorly into the median nerve, shallowly sul- 

 cate. Column very slender. Stelidia basal, linear, obtuse, 2 mm. 

 long, scarcely equaling the subquadrate, entire or minutely three- 

 lobed terminal wing. 



A very distinct species of series Similia Pfitz. that is well char- 

 acterized by its lanceolate, very acuminate labellum. In the ma- 

 terial examined the terminal wing of the column is very variable, 

 in the type being three-lobed, three-toothed or almost entire. 

 (Plate 83.) 



KiNABALu, //fl.sZam, July-August 1916. Marei Parei Spur, Clemens 280 

 (Type), November 1915; Clemens 22^ A^ November 1915; Clemens 2^2, 

 November 1915. Pakka, Clemens 114-i November 1915. 



17. Dendrochilum lobongense Ames sp. nov. Pseudobulbi 

 statu juvenili vaginis laxis vestiti, monophylli. Folium quam 

 pedunculus brevius, oblongo-ellipticum. Racemus multiflorus, 

 nutans. Bracteae inflorescentiae patentes. Sepala lateralia ob- 

 longo-lanceolata, acuta. Sepalum dorsale simile. Petala oblongo- 

 ovata, acuta. Labellum trilobatum ; lobi laterales anguste trian- 



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