NOTES ON PHILIPPINE ORCHIDS, I. 67F 
THELASIS Blume. 
Thelasis obtusa Blume Bijdr. (1825) 386. 
I refer to this species the material collected by Leiberg on Mount Mariveles, 
Luzon. This material has monophyllous pseudobulbs which are much shrivelled 
in the dried state. They appear to have been globular when alive. The general 
habit of the plants recalls 7. capitata BI). but the raceme is elongated, slightly 
less than 4 em long, and comparatively lax. The labellum is somewhat saceate 
and has a minute crest along the median line. Schlechter regards 7. obtusa 
as closely related to 7’. macrobulbon Ridl., from which it differs in part through 
its monophyllous pseudobulbs. 7. macrobulbon is diphyllous. 
In the herbarium of the Bureau of Science there are four flowering scapes of 
a species of Thelasis, presumably from Java, which J. J. Smith has identified as 
T. obtusa Bl. I have compared Leiberg’s specimens with these and I find that 
the floral parts are in almost perfect agreement. 
7’. obtusa has not been reported, heretofore, as native to the Philippines. 
Luzon, Province of Bataan, Mount Mariveles, J. B. Leiberg 6046, July 20, 
1904, epiphytic, altitude about 900 m. 
SACCOLABIUM Blume. 
Saccolabium chionanthum Lindl. Journ. Linn. Soc. Bot. 3 (1859) 35. 
I follow the authority of J. J. Smith in referring to this species 8. perpusillum 
Hook. f. The material from the Philippines which I have studied is in almost 
perfect agreement with the illustration published in Hooker’s “Icones Plantarum” 
(pl. 2129). The flowers are not so pubescent as shown in Hooker’s plate, but 
are papillose. Ridley states that the flowers when alive are hardly pubescent 
and are rather minutely papillose. His observations in regard to this character 
convince me that Hooker’s illustration may exaggerate it. 
The sepals and petals of the Philippine specimens agree perfectly with the 
figures published by Hooker (although they are very obscurely. ciliolate on the 
margin). The labellum terminates in the same kind of a fleshy apex and at 
the base produces the same kind of a scrotiform sac as shown by Hooker. The 
structure of the column in Hooker’s plate agrees with my material. 
In general habit Saccolabium chionanthum suggests Phreatia parvula, and 
unless carefully examined might readily be confused with it when dried. 
Luzon, Province of Rizal, Bur. Sci. 3055 Ramos, November 14, 1907, flowers 
small, white. 
Java, Sumatra, Singapore. 
TRICHOGLOTTIS Blume. 
Trichoglottis latisepala sp. nov. 
Caulis tenuis, subflaccidus, elongatus, plus minus 3 dm longus, 2.4 
mm in diametro. Vaginae 1.5 ad 1.7 cm longae. Folia lineari-lan- 
ceolata, acuta, 7 ad 12 cm longa, 7 ad 10 mm lata, coriacea. Pedunculi 
pauciflori. lores parvuli. Sepala lateralia 5 mm longa, subbipartita, 
vel biloba; lacinia posterior 4 mm longa, obtusa, lacinia anterior similis 
sed angustior et subbrevior, 2 mm longa. Sepalwm dorsale oblongum, 
obtusum, 3-nervium, 6 mm longum. VPetala oblonga, subspathulata, 
obtusa, 5 mm longa, 2 mm lata. Labellum 3-lobatum, lobi laterales 
