NEW 01^ NO rKWOH rilY OHCIIIDS 
semilanceolata, acuLa, usque ad medium cohaerentia, prope 
basim quadrinervia, prope medium sexncrvia, menlum ven- 
Iricosum formantia. Sepalum dorsale lanceolatum, acuLum, 
septcmnerviiim. Pelala oblanceolala, obtusa vel late 
spathulata. Labellum petalis mulLo minus, breviler unguic- 
ulatum, supra unguem in laminam anguste ovatam ob- 
Lusam subcordatam expansum, intus prope basim longe 
glanduloso-villosum, conspicue trinervium. Pes columnae 
longe glandulosus. 
Epiphytic herb, caespilose, pendulous, with slender 
villose roots. Rhizome curved, ascending, 12-20 cm. long, 
with the slender pseudobulbs arising for the most part from 
the outer side of the curve, concealed by rufous retinerved 
ample sheaths. Pseudobulbs about 2 cm. long, very slender, 
obliquely ascending, cylindrical, concealed by retinerved 
rufous sheaths, monophyllous. Leaf up to 6 cm. long, linear, 
Hat on the upper surface, somewhat rounded on the under 
side, unequally bilobed at the tip, obtuse. Peduncles sub¬ 
equal to the pseudobulbs, provided with a large bract below 
the ovary, clothed with elongated branching hairs which are 
easily detachable. Bract subtending the llower 9 mm. long, 
smooth. Pedicellate ovary conspicuously winged, about 
1.5 cm. long, provided with weakly attached branching 
trichomes. Lateral sepals 12 mm. long, 3.75 mm. wide near 
the middle, asymmetrically lanceolate, united to about the 
middle, 6-nerved, smooth, forming a conspicuous obtuse 
mentum which is 3 mm. long. Dorsal sepal 13 mm. long, 
4.75 mm. wide, lanceolate, acute, 7-nerved. Petals 12 mm. 
long, 5 mm. wide, oblanceolate or broadly spatulate, obtuse, 
7-nerved. Labellum 3 mm. long, about 2 mm. wide just 
above the short claw, narrowly ovate-cordate, obtuse, 
3-nerved, each lateral nerve with a short obliquely ascending 
branch. Claw of the labellum glandular-hairy within, form¬ 
ing a shallow depression at the base of the lamina. Column 
including the foot 3.5 mm. long; foot glandular-hairy. 
In habit Ceratosti/lis Elmeri is somewhat similar to C. 
philippinensis Rolfe, from which it differs conspicuously in 
the larger flowers and in the oblanceolate or broadly spatu¬ 
late petals. 
oO 
