312 
AMES. 
HABENARIA Willd. 
Habenaria (§ Seticaudae) alagensis Ames sp. nov. 
Plants about 6 dm. high, leafy at the base. Leaves oblong-lanceolate, 
acuminate, acute, about 2 dm. long, about 3 cm. wide. Floral bracts 
lanceolate, acuminate, very acute, 1.5-2 cm. long, shorter than the ovary. 
Ovary 3 cm. long, narrowed above into an elongated, slender neck. 
Flowers greenish, odorless, in an elongated loose raceme. Lateral sepals 
somewhat elliptical, deflexed, 1 cm. long. Upper sepal strongly concave, 
1.4 cm. long. Petals 1.4 cm. long, 1 mm. wide, simple, linear above the 
dilated base, where they are 2.5 mm. wide and anteriorly protuberant. 
Labellum about 1.2 cm. long simple, strongly deflexed’ beyond the middle, 
caudate-tipped. Spur about 2 cm. long-, very slender above the middle, 
strongly incurved and dilated-clavate toward the apex, resembling some- 
what the abdomen of an inchneumon fly ( Opliion purgatus ). Anther 
canals much exceeding the stigmatie processes. 
Terrestrial in humid forest at 400 ft. alt. along the Alag River, Nov. 5, 1906, 
Merrill (No. 5803). 
Habenaria angustata (Bl.) 0. K. Rev. Gen. PI. 2: 664 (1891 ). — Mecosa 
angustata Bl. Bijdr. 404, fig. 1 (1825). 
Terrestrial in mossy forest at 8,000 ft. alt. on Mount Halcon, Nov. 20, 1906, 
Merrill (No. 5802). 
The material on which my determination is based is not very satisfactory for 
a sure diagnosis. 
Java, Borneo. 
Habenaria (§ Mecosa) halconensis Ames sp. nov. 
Plant about 3 dm. high. Leaves much reduced, cordate-ovate to 
lanceolate, acute about 4 cm. long, 2-3 cm. wide, passing above into 
clasping lanceolate, acute bracts. Floral bracts exceeding the ovaries, 
lanceolate, acute, about 1 cm. long. Flowers green, in a loose, erect 
raceme. Lateral sepals linear-oblong, acute, about 1 cm. long, 2.5-3 
mm. wide. Upper sepal broadly ovate, obtuse, 9 mm. long, about 6 mm. 
wide. Petals simple, lanceolate, falcate, obtuse, 8 mm. long, 4.5 mm. 
wide at base. Labellum simple, linear-oblong, tapering gradually to the 
obtuse tip, 11 mm. long, 3 mm. wide at base, 1 mm. wide near the tip. 
Spur nearty straight, slightly exceeding the labellum in length, 12 mm. 
long. (Uppermost flowers slightly smaller in all their parts than the 
lowermost.) 
Terrestrial in open heath, at 8,000 ft. alt. on Mount Halcon, Nov. 20, 1906, 
Merrill (No. 5835). 
The material from which the above description is drawn is somewhat scrappy 
and not well provided with foliage. The flowers are much like those of Habenaria 
angustata O. K., but considerably larger and different in detail. 
