( )RCH II )ACEiE IIALGONENSES: 
313 
CRYPTOSTYLIS R. Br. 
Cryptostylis arachnites (Bl.) Hasskarl Cat. Bog. 48 (1844) ; Reiclib. f. 
Bonpl. 5: 36 (1857). Zosterostylis arachnites Bl. Bijdr. 419, fig. 32. (1825). 
Terrestrial in forest at 3,000 ft. alt. on Mount Halcon, petioles and leaves 
mottled, Nov. 10, 1908, Merrill (Nos. 5478, 5488). 
Ceylon, S. India, Malay Peninsula, Java, Borneo. 
GALEOLA Lour. 
Galeola Hydra Reichb. f. Xen. Oreh. 2: 77 (1862). — Galeola Kuhlii Reiclib. 
f. Xen. Orch. 2: 78.— Erythrorchis Kuhlii Reichb. f. loc. cit. t. 119. 
Near the Baco River, saprophyte on dead tree trunk, Apr. 11, 1903, Merrill 
(No. 1811). — Baco River, Apr.-May, 1905, R. G. McGregor (No. 225). 
“Whole plant yellowish, leafless. This species grew on a dead stump near the 
edge of an old clearing, in a very humid forest apparently rooting in the ground 
at the base of the stump. The Baco Valley is a very broad, mostly heavily tim- 
bered plain not much above the sea level (perhaps 10 m.), 6 or 8 miles inland. 
It is a very humid locality owing to the proximity of Mount Halcon to the north 
and west.” — Field-notes by the collector. 
India, Tenasserim, Penang, Perak, Singapore, Malacca, Java and Sumatra. 
APHYLLORCHIS Bl. 
Aphyllorchis pallida Bl. Bijdr. fig. 77 (1826), Mus. Bot. Lugd.-Bat. 1: 30. 
Terrestrial in humid forest on ridges at 1,000 it. alt. along the Binabay River, 
Nov. 2, 1906, Merrill (No. 5810). — Terrestrial in ridge forest, at 2,800 ft. alt. 
on Mount Halcon, Nov. 10, 1906, Merrill (No. 5811). 
Java. 
VRYDAGZYNEA Bl. 
Vrydagzynea albida Bl. FI. Jav. Orch. 62, t. 19, f. 2. (1858). — Etaeria albida 
Bl. Bijdr. 410 (1825). 
Terrestrial in forest at 850 ft. alt. along the Binabay River, flowers white, Nov. 
4, 1906, Merrill (No. 6125). 
The material on which the above determination is based differs in several minor 
details from the specimens preserved at Leiden, which constitute Blume’s type, 
but is not sufficiently different for separate treatment at this time. 
Java, Sumatra. 
CYSTORCH IS Bl. 
Cystorchis aphylla Ridl. Journ. Linn. Soc. 32: 400 (1896). 
Terrestrial on forested ridge at about 1,000 ft. alt. on Mount Halcon, plant 
white, bracts pinkish, Nov. 8, 1906, Merrill (No. 5662). — Sapropyte, ridges in 
forest, about 1,000 ft. alt. along the Binabay River, whole plant salmon pink, 
base and tips of floral segments paler, Nov. 2, 1906, Merrill (No. 5797). 
Malay Peninsula and Java. 
HERPYSMA Lindl. 
Herpysma Merillii Ames sp. nov. 
Plants 1-3 dm. high. Rhizome creeping. Leaves about 5, ovate- 
lanceolate, shortly acuminatej acute, rounded at the base, 5-7 cm. long, 
about 3 cm. wide, passing into slender petioles. Base of the petioles 
