.250 . ORCHIDS OF THE SIKKIM-HIMALAYA. 
two-thirds of the length of the caudicle. Capsule subcylindric, tumid, :2 in. long. Par. 
and Reichb. fil. in Linn. Trans. XXX, 145; Reichb. fil. in Walp. Ann, VI, 923; Hook, 
fil. Fl. Br. Ind. VI, 86. .Ewproboscis pygmea, Griff. in Cale. Journ. Nat. Hist. V, 371, 
t. 72; Wight Ie. 1732. 
Sikkim, at low elevations; in flower during August and September; Pantling 
No. 235. Malabar; Jerdon. Tenasserim; Parish. The flowers are pale green. 
Ртлте 331,—Thelasis pygmea, Lindl, A tuft of plants, of natural sise. Fig. 1 part of rachis, 
bract, ovary and flower, side view, 2 petals, З bract, ovary, lip and column, seen from behind, 4 B» ваи 
of the column from below, 6 anther, 7 pollinia; ай enlarged. 
2. THELASIS LoNGIFOLIA, Hook. fil. Ic. Plantar. t. 2155. 
Pseudo-bulbs conical, "5 to ‘75 in. long, bearing at the apex a single narrowly oblong 
or occasionally somewhat oblanceolate leaf, blunt and very minutely bifid at the apex 
and narrowed to the sessile base, 4 to 6 in. long and “5 to ‘7 in. broad. Scape from a 
developing pseudo-bulb, slightly longer than the adult leaf, with one or two scattered, 
short, thick, spreading sheaths along it and also several at the base. Raceme 1 to 2 in. 
long. Flowers numerous but not crowded, minute, ‘2 in. long; bract broadly ovate, acute, 
much shorter than the ovary. Sepals without keels; the lateral pair ovate, blunt, the 
` dorsal longer and narrower. Petals narrowly ovate, sub-acute. Lip elliptic, blunt, 
minutely bifid at the apex, otherwise entire, without side lobes, somewhat thickened in 
the middle near the base, the upper surface quite smooth. Column tapering to the 
apex; the rostellum long and narrow. Anther long-beaked, 2-celled, each cell with four 
compartments; pollinia broadly elliptic; the caudicle very long and slender, slightly 
dilated at the apex; gland small, oblong. Hook. fil. Fl. Br. Ind. VI, 87. 
Sikkim, in tropical valleys; in flower during July and August; Pantling No. 223. 
Khasia Hills. The flowers are green in colour. 
Ртлте 332.—Thelasis longifolia, Hook. fil. A group of plants, of natural size. Fig. 1, flower with 
ovary and bract, side view, 2 lip, 3 bract, ovary, column, anther, and lip, from above, 4 view of the 
column from underneath, 5 anther, 6 pollinia; ай enlarged, 
64. Phreatia, Lindl. 
Coespitose plants, often minute, with or without pseudo-bulbs. Leaves not plicate, 
articulated on rather wide equitant sheaths. Scape interfoliar and from the base of the 
pseudo-bulb, erect, racemose or spicate, many-flowered, Flowers minute, resupinate, 
expanding centrifugally. Sepals equal, connivent or spreading; the lateral pair adherent 
to the column. Petals narrower than the sepals, Zip fleshy, entire, decurved, adnate to 
the short foot of the column, broad or narrow. Column short, with a broad apex; the 
rostellum small, erect on the. front edge of the truncate apex, bifid. Anther occupying the 
apex of the column; the pollinia eight in two rows, attached to a narrow caudicle lying 
horizontally and attached at a right angle to a gland contained in the cleft of the vertical 
rostellum. Capsule minute, ovoid. Species about ten, Malayan and Pacific Islands, 
“We have removed this genus from Epidendreae to Vandeae. From the extremely delicate texture 
of the flowers, it is impossible to make out the polliniar structure with certainty in dried specimens. 
Very careful dissections of the living flowers have shown us that the eight pollen-masses are attached to 
а caudicle which ends in an elongated gland situated in the fork of the vertical bifid rostellum. The 
