ORCHIDACEHD HALCONENSES. 
325 
about 4 cm. in diameter. Floral bracts fugacious. Pedicels slender, 
wiry, 7-10 mm. long. Lateral sepals subfalcate, acute, 11 mm. long, 3.5 
wide. Upper sepal oblong-lanceolate, acute, 11.5 mm. • long. Petals 
oblong-oblanceolate, somewhat acuminate, acute, 1 cm. long, 4.5 mm. wide 
above the middle. Labellum quadrate, apiculate; plate 4 mm. long, 
about 4 mm. wide, sometimes constricted or obscurely lobed near the mid- 
dle ; obscurely if at all tricallose in the throat on the middle nerves. Spur 
glabrous, nearly straight, dilated slightly near the tip, 8 mm. long. 
Terrestrial in forest at 2,300 ft. alt. on Mount Halcon, Nov. 9, 1906, Merrill 
(No. 5489). 
Calanthe McGregorii Ames sp. nov. 
Leaves lanceolate, acuminate, acute, about 3 dm. long, about 8 cm. 
wide, long-petioled. Petioles about 2.5 dm. long. Scape sparsely pubes- 
cent about 9 dm. long, with several tubular, acute sheaths. Inflores- 
cence rather strict. Bracts 5-10 mm. long, .lanceolate, acute, persistent. 
Flowers white, with a yellow spot in the throat, numerous, small. 
.Pedicels slender, elongated, about 2 cm. long. Lateral sepals oblong, 
acute, about 6 mm. long, 3 mm. wide. Upper sepal elliptic-lanceolate. 
Petals linear-oblong, acute, somewhat dilated near the middle, 6.5 mm. 
long, about 2 mm. wide. Labellum 3-lobed ; middle lobe deeply cleft, the 
divisions about equal to the lateral lobes; lateral lobes 5 mm. long, 3.5 
mm. wide, oblong, obtuse, broader at the apex than below the middle; 
middle lobe 7 mm. long divisions divaricate, spathulate, 3.5 mm. long, 
2.5-3 mm. wide at the apex. On the disc near the column several 
papillae are situated. Spur straight, glabrous, 8 mm. long. 
Balete, along the Baco River, March 31, 1905, R. C. McGregor (No. 177). 
Calanthe mindorensis Ames sp. nov. 
Leaves long-petiolate, petioles about 18 cm. long; lamina oblong- 
lanceolate to elliptic-lanceolate, acuminate, acute, about 3 dm. long, 
about 1 dm. wide. Scape 4 dm. or more long, sparsely pubescent, pro- 
vided with several oblong, closely appressed, acute bracts. Floral bracts 
broadly ovate, acute, about 1 cm. long. Pedicels about 2 cm. long. 
Flowers very large, odorless, pale violet. Lateral sepals oblaneeolate, 
falcate, acute, 1.5 cm. long, 7 mm. wide above the middle. Upper sepal 
lanceolate, 1.5 cm. long, acute. Petals spathulate-oblanceolatej 1.5 cm. 
long, 5.5-6 mm. wide above the middle. Labellum 3-lobed; middle 
lobe 12 mm. long, 16 mm. wide, cuneate-obcordate or flabelliform, deeply 
cleft; lateral lobes 1 cm. long, 6 mm. wide, oblong, obliquely truncate; on 
the disc near the column is a 3-lobed or 3-plaited callus, beyond which are 
several rows of erect papilse. Spur curved, glabrous, about 1.5 cm. long. 
Terrestrial in ridge forest at 2,300 ft. alt. on Mount Halcon, Nov. 9, 1906, 
Merrill (No. 5525). 
