NEW ()]< NOTKWOIVrilY ORCHIDS 
Philippines, Mindanao, Davao District, Mount Apo, 
A. I). E. Elmer 11358, August 1909. Small loose tufts upon 
moss-covered tree trunk on Mount Calelan at 7750 feet; 
stems hanging, curved ascendingly, terete, covered with 
reddish brown strongly nerved sheaths, giving rise to leafy 
branchlets; leaves rigidly coriaceous, ascending, dark green, 
flat on the upper side, flattish convex beneath, the base 
covered with sheaths; llower ascending from the basal por- 
lion of the uppermost leaf axil, white. “ Sumalipan.” 
(Type in Herb. Ames No. 20936.) 
Ceratostylis mindanaensis Ames sp. nov. Ilerba epi- 
jihytica, parvula, pauciramosa, ramis patentibus. Pseudo- 
bulbi abbreviati, teretes. Folia semiteretia vel triquetra, 
superne sulcata, apice acuta. Caules infra folia vaginis im- 
bricatis rufis oblecti. Flores singuli, pilis albidis obtecti. 
Sepala lateralia elliptico-oblonga, men turn obtusum for- 
mantia, apice subacuta, minute cucullata, extus pilosa. Se- 
paluni dorsale simile sed minus, extus longe pilosum. Petala 
anguste lanceolata, acuta, membranacea, trinervia. La- 
bcllum unguiculaLum, lanccolatum, subtus valde carina- 
lum, apice triquetrum. Discus infra medium labelli valde 
bicarinatus, inter carinas glandulosus. Columna generis. 
Epiphytic herb (5-11 cm. tall, caespitose, branching; 
branches 5-15 mm. long, concealed when young by closely 
imbricating rufous sheaths. Pseudobulb about 5 mm. long, 
cylindrical, terminated by a fleshy rigid leaf. Leaves about 
3 cm. long, about 5 mm. thick in greatest diameter, sub- 
terete or triquetrous, grooved along the upper surface, when 
immature partly concealed by rufous bracts. Peduncle 
about 1 cm. long, ascending from among rufous bracts, 
densely clothed with soft whitish hairs. Flower white, with 
the much abbreviated pedicel subtended by an ample bract 
which is 3-4 mm. long. Ovary 3.5 mm. long, clothed with 
intertwining whitish hairs. Lateral sepals 4.5 mm. long, 
2 mm. wide near the middle, forming a distinct obtuse men- 
tum, elliptic-oblong, acute, with a minutely cucullate tip. 
Dorsal sepal 4 mm. long, hardly 2 mm. wide at the middle, 
similar to the lateral sepals and like them glandular-hairy 
