the lip which is concave only instead of saccate toward 
the base. 
Luzon: Province of Rizal, September 1909, Loher s.n. (Tyrer in 
Herb. Ames No. 45010). 
Saccolabium Quisumbingii LL. O. Williams. sp. 
nov. 
Herba epiphytica, caule abbreviato. Folia disticha, 
conferta, ligulata, coriacea, obtusa, retusa et apice inae- 
qualiter bilobata. Inflorescentia foliis subaequalis, paene 
usque ad basim florifera; rhachis leviter carnosa et alata; 
bracteae hyalinae. Sepalum dorsale oblongo-ellipticum, 
obtusum, carinatum. Sepala lateralia similia sed paulo 
obliqua. Petala anguste-obovata, obtusa, carinata, tri- 
nervia. Labellum valde saccatum, trilobatum, plusmin- 
usve triangulare; lobi laterales leviter obliqui, rotundati, 
obtusi; lobus medius brevis, valde carinatus, callum sim- 
ulans. 
Epiphytic herb. Stem abbreviated, 2-8 cm. long. 
Leaves ligulate, coriaceous, distichous, crowded, obtuse, 
retuse and unequally lobed at the apex, constricted and 
articulated at the base, 8-15 cm. long, 1.5-8 em. broad. 
Inflorescence about as long as the leaves, floriferous near- 
ly to the base ; rachis somewhat thickened and winged (at 
least in dried material); bracts hyaline, broader than long. 
Dorsal sepal elliptic-oblong, obtuse, thickened, dorsally 
with a short apiculation toward the apex, about 6 mm. 
long and 4mm. broad. Lateral sepals similar but slightly 
oblique, at the base adnate to the claw of lip, 4- to 5- 
nerved, dorsally with a short apiculation toward the apex, 
about 6 mm. long and 8 mm. broad. Petals narrowly ob- 
ovate, obtuse, thickened, 3-nerved, about 5 mm. long 
and 2mm. broad. Lip strongly saccate, 3-lobed, approx- 
imately triangular in outline, about 6 mm. long from 
the base of the sac to the apex of the erect lateral lobes ; 
[ 110 | 
