THE FLORA OF MOUNT PULOG. 541 
8. D. venustulum (Ames) Pfitz. in Engl. Pflanzenreich 32 (1907) 116. 
In the mossy forest above an altitude of 2,200 m, Merrill 6635. 
Known only from the higher mountains of the Benguet-Lepanto region. 
9. D. sp. 
In the mossy forest, McGregor 8849; an undescribed form, ‘fide Ames. 
x 
CESTICHIS Pfitz. 
1. C. sp. aff. C. benguetensis Ames Orchidaceae 1 (1905) 9, t. 3. 
In the mossy forest, altitude about 2,200 m, C. M. Z. 16350, the specimens 
without flowers. 
The species is known only from the higher mountains of Benguet. 
OBERONIA Lindl. 
l. O. cylindrica Lindl. Bot. Reg. (1840) Mise. 20. 
In the mossy forest above an altitude of 2,200 m, Copeland s. n., MeGregor 8328, 
Merrill 6480, 6573. 
Widely distributed in the Benguet-Lepanto region at higher altitudes; endemic. 
EULOPHIA R. Br. 
. 
1. E. squalida Lindl. Bot. Reg. (1841) Mise. 77. 
On talus slopes in the lower pine region, altitude about 1,200 m, Merrill 6501. 
Known in the Philippines from Luzon and Palawan; Malaya. 
DENDROBIUM §8w. 
1. D. heterocarpum Wall. ex Lindl. Orch. Pl. (1830) 78. 
On boulders in the pine forest-below an altitude of 1,300 m, C. M. Z, 16845. 
India, Ceylon, Burma, and Java. 
ERIA Lindl. 
1. E. ornata (Bl.) Lindl. Orch. Pl. (1830) 66. 
On boulders in stream depressions, lower pine region, Merrill 6482. 
Rather widely distributed in northern and central Luzon; Sumatra, Java, 
Borneo, and ? Siam. 
2. E. philippinensis Ames Orchidaceae 1 (1905) 94. 
Abundant in the mossy forest above an altitude of 2,200 m, C. M. Z. 16346, 
16349, Merrill 6351, 6479. 
Mountains of central and northern Luzon; endemic. 
3. E. ventricosa Leavitt in Philip. Journ. Sci. 4 (1909) Bot. 211, 284, 
fig. 16. 
In the mossy forest, aititude about 2,700 m, Copeland s. n. 
Mountains of Luzon and Mindoro; endemic. 
in SACCOLABIUM Bl. 
1, S. compressum Lindl. Bot. Reg. (1840) Mise. 9. 
In the pine region, altitude about 1,300 m, C. M. Z, 16343. 
Of wide distribution in the Philippines; endemic. 
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