76 Oakes Ames. 
minute, rounded, keel-like callus in the middle of the bottom. Column 
minute, 1 mm long, with a protuberance in front. 
From Mt. Santo Tomas. Prov. Benguet, Luzon, May 7, 1904, A. D, 
E. Elmer (no. 6273). 
7. Acoridium strietiforme O. Ames, 1. c., p. 147. 
Pseudobulbi fusiformes; folia lineari-oblonga, marginata, acuta; sepala 
lateralia lanceolata, acuta, 1-nervia; petala lineari-lanceolata, acuta, 1- 
nervia; labellum 3-lobatum, 3-callosum, lobis lateralibus falcatis, obtusis, 
lobo medio 3-lobato. 
A compact epiphyte about 6 cm high, with a dense distichous inflor- 
escence of white fragrant flowers. Pseudobulbs fusiform, 1—1,5 cm long, 
rugose when dry, monophyllous. Leaves linear-oblong, shortly petioled, 
coriaceous, acute, 2,5—4 cm long, 3—5 mm wide, prominently 3-nerved, 
the outer nerves marginal, giving the leaves a marginate aspect (at least 
when dry). Petiole about 3 mm long. Peduncle shorter than or equalling 
the leaf, rather strict, filiform. Inflorescence 1,5—2 cm long, 4—5 mm 
through, densely flowered. Bracts broadly ovate. obtuse, erose, dentate 
on the margin, 2,5 mm long, exceeding the ovary and clasping the base 
of the perianth. Lateral sepals lanceolate, acute, 1-nerved, 3 mm long, 
less than 1,5 mm wide; upper sepal similar to but narrower than the 
laterals. Petals linear-lanceolate, acute, 1-nerved, 3 mm long, slightly 
less than 0,75 mm wide. Lip 3-lobed, with large falcate, obtuse, dia- 
phanous lateral lobes, 1 mm long, and with a minute trilobed middle 
lobe which is fleshy and passes into fleshy calli, situated one on each 
lateral lobe, on the inner margin near the base; on the median line a 
minute papilla, Column, with a rostellar process protuberant from the front. 
Anther very large in proportion to the size of the minute column. 
From between Suyoc and Panai, Prov. Benguet, Luzon, October- 
November, 1905, E. D. Merrill (no. 4854). 
This very distinct species is distinguished from its near allies, À. 
tenue and A. parvulum, by the very narrow 1-nerved petals, by its strict, 
almost rigid habit, and by its acute leaves. 
8. Acoridium anfractum O. Ames, I. c., p. 148. 
Pseudobulbi oblongi; folia oblonga, acuta vel obtusa, apiculata; pedun- 
culi quam foliis longiores; rachis anfracta; sepala lateralia lanceolata, 
acuta, 3-nervia; sepalum dorsale elliptico-oblongum; petala obovata, 3- 
nervía, ad apicem margine erosa; labellum 3-lobatum, lobis lateralibus ad 
apicem reflexis, lobo medio retuso, mucronato. 
Pseudobulbs oblong, 1—3 cm long, when immature clothed with 
densely maculate sheaths. Leaves 6—7 cm long, 7—9 mm wide, prom- 
inently 3-nerved, acute or obtuse, apiculate. Petioles, about 1 cm long. 
Peduncle longer than the leaf, with several closely imbricating bracts 
below the inflorescence. Bracts ovate from a broad base, entire, 6 mm 
long, longer than the ovary. Rachis of the inflorescence strongly zig-zag, 
each internode forming a right-angle with its subtending bract. Flowers 
8—9, large for the section, 5—6 mm apart, brownish-red in a loose raceme. 
