274 Orchidacee. [ Bulbophyllum. 
4. B. tricarinatum Petch m.s. 
‘“Pseudobulbs minute, ovoid, truncate at the apex, about 
o°2 in. high, 0-15 in. diam., crowded ona very slender rhizome. 
Leaves ovate, or ovate-lanceolate, from 0-2 in. broad to 
1-25 in. long, 0°25 in. broad, contracted, usually abruptly, 
into a distinct petiole, thick in the centre, apex incised. 
Scape filiform, up to I in. high, with two to four flowers 
(subumbellate in a short raceme) at the apex, expanding 
slightly towards the apex, bearing a sheathing bract at about 
half its height. Flowers sessile, greenish-yellow, translucent, 
becoming dull orange-yellow when old. Ovary green, 
curved, feebly ribbed, about o-1 in. long: length of flower 
without ovary about 0:2in. Bracts small, hyaline, triangular, 
extending up to half the length of the ovary. Dorsal sepal 
oblong, apex rounded, 0-2 in. long, o-1 in broad, three 
veined, distinctly peeled ribbed over the veins, especially at 
the base, frequently with a small projecting tooth of the 
median rib just below the apex of the sepal, appearing as 
long as, or slightly shorter than, the lateral sepals in the 
open flower. Lateral sepals inequilateral, semiovate, apex 
obtuse or truncate united by their inner edge up to halfway 
or nearly to the top, 0-2 in. long, o-I in. broad, becoming 
recurved and convex, three veined, becoming ridged when 
old, adnate to the foot: mentum gently rounded. Petals 
small, oblong with a triangular tip, 0-1 in. long, one veined. 
Column short, produced into a point behind; and with lateral 
process, consisting of a slightly curved elongated tooth, 
furnished with a minute triangular tooth at the back and a 
rounded projection on the anterior side. Pollinia pearshaped, 
two large and two small. Lip tongue-shaped, hinged, 
abruptly bent at right angles, channelled in the centre, with 
two small erect lobes before the bend, and an oval raised 
area on either side of the channel just beyond the bend. Lip 
tomentose-papillate except in the channel.’’ (Petch.) “* Fruit 
apparently +4 in., ribbed’’ (A. N. Paine). 
Maturata district, 5600 ft. in heavy jungle. Nov. 27, 1921, Oct. 7, 
1921 (A. N. Paine). 
Apparently near B. moniliforme Par. & Reich. which has dorsal and 
lateral sepals five nerved.—Petch. 
This seems doubtfully distinct from B. maskeliyense, but the 
material of that species is insufficient. 
Page 161.— 
Adrorhizon purpurascens Hk. f. 
Adam’s Peak; Balangoda (A. N. Paine). 
Page 164.— 
Acanthophippium bicolor Lindl. 
Bogovantalava (A. Farr). 
Part IV. 
