TA ORCHIDS OF THE SIKKIM-HIMALAYA. 
Hook. fil. Fl. Rr. Ind. V, 760.  Anisopetalum  Careyanum, Hook. Fl. Exot. t. 149. 
Pleurothallis purpurea, Don Prod. 33, Tribrachia purpurea, Lindl. Col. Bot, 41. 
Sikkim; in warm valleys, common; Pantling, No. 23; in flower in October, 
November and December; distributed westwards to Nepal and eastwards to the Khasia 
Hills and Burma. 
The flowers of the Sikkim plant are of a uniform coppery brown, the column 
alone being yellow and the petals largely blotched with that colour. In oótoüsaticn they . 
thus differ from the Nepal plant as figured by Sir William Hooker (under the name 
Anisopetalum Careyanum) in his Exotic Flora, t. 149. In that figure the sepals and 
petals are depicted as dusky yellow, spotted with brown; the column and petals as 
yellow; and the lip as purple. The basal lobes of the lip are of the same shape 
as in the Sikkim plant; the petals, however, are narrower, unspotted, and with no 
appendages оп their margins. Іп spite, however, of these differences, we believe 
Sir William Hookers figure and that here given, to refer to the same species. 
Sir Joseph Hooker reduces (Fl. Вг, Ind. |. с.) to a variety of this, under the varietal 
name ochracea, the plant named В. cupreum by Lindley in the Bot. Register, XXIV 
(1838), Misc. 95, and figured under that name in Bot. Mag. t. 5316, This form, 
which is found in Burma, has ochraceous sepals and petals and a reddish-brown lip. 
In all other respects, except colour, its flowers agree with those of the Sikkim plant as 
here figured. Closely allied to this are B. sicyobulbon, Reichb. fil, and В. crassipes, 
Hook, fil. The latter species is described and figured in the Bot. Magazine (t. 4166) 
as B. Careyanum, from which, however, it differs in having a longer column with 
shorter apical teeth, in having the side lobes of the lip shorter and blunter, and in 
having (according to the figure 4166) shorter rac»mes. We have not been able to 
find В, crassipes in Sikkim, and indeed its author attributes it only to the Khasia Hills, 
although in the Flora of British India Sir Joseph Hooker gives it as a native of Sikkim. 
В. sicyobulbon was described from Burma by Reichenbach filius, who distinguishes it 
from this by its orange-yellow flowers with narrower floral bracts, sub-serrulate petals, 
and by its larger pseudo-bulbs. Another species to which В. Czreyanum is closely allied 
is В, Pechei Cat Bull. This, which has been described and figured by Sir Joseph 
Hooker (Bot. Mag. t. 7236), agrees with B. Careyanum in its pseudo-bulbs and leaves, 
in the length of its densely-flowered raceme, and in its bracts and sepals. Its flowers 
are of the same dull colour as those of the Sikkim form of B. Careyanum here figured, 
and it is probably the same species, A plant (probably belonging to an undescribed 
species) which recently flowered in the Botanic Garden in Caleutta, and which is 
believed to have been received from Burma, closely resembles В, Careyanum, but has 
. yellow flowers with triangular floral bracts not half so long as the ovaries, a much 
longer and rather more lax and more slender inflorescence than ДВ. Careyanum, Smaller 
petals, and a lip otherwise like that of .B. Careyanum, but with blunt, not acute, side 
lobes, It has also smaller pseudo-bulbs than В. Careyanum, and in this character disagrees 
with the description of В. sicyobulbon, The flowers of this Burmese plant, like those of 
D. Careyanum, have a disagreeable odour. The plants mentioned in this paragraph 
belong to a group of Bulbophyllum, the lips of which have basal lobes, an unusual 
charaeter in the genus. The members of the group differ within very narrow oem 
and the whole of them want careful study in the field. 
Ртлте 97. Palo Careyanum, Spreng. A plant; of natural size. Fig, 1 a flower, 2 floral 
bract, stalked ovary, column and lip, seen from the side, З lip, 4 column and its foot, 5 petals, 6 сз, 
7 pollinia; all enlarged. 
