70 ORCHIDS OF THE SIKKIM-HIMALAYA. 
7. BULBOPHYLLUM POLYRHIZUM, Lindl. Gen. and Spec. Orchid., 53. 
Rhizome branching, thread-like, naked; pseudo-bulbs globular or ovoid, with a broad 
base, about 1 in. apart, smooth. Leaf narrowly oblong, sub-acute, slightly narrowed to 
the sessile base, deciduous before the scapes flower, 2°5 in. long and :35 in. broad. 
Scape filiform, about 4 in. long, its peduncle sub-erect, longer than the raceme, with 
one or two minute bracteoles; raceme inclined, with about six secund distant pale- 
yellowish flowers :25 in. long; floral braci minute, oblong, about as long as the short 
stalk of the ovary. Sepals spreading, sub-acute ; the dorsal ovate, concave; the lateral 
pair longer, oblong-lanceolate, sub-acute, 3-nerved. Petals much shorter than the 
sepals, broadly ovate, acute, l-nerved. Lip stipitate, deflexed from the base, oblong, 
obtuse, scaberulous, the basal half grooved. Column with very short sharp teeth; its foot 
short, slightly curved. Anther papillose, its lip acute. Hook. fil. Fl. Br. Ind. V, 767: 
in Ann. Bot. Gard. Calo; V, Pt. I, 15, t. 23. 
Sikkim; іп the valley of the Teesta; elevation: about 1,500 feet; Lister, Рай п 
No. 260. Nepal; Wallich. Dehra-Dun; Gamble ; in flower in April. 
In the Dehra Dun specimens the pseudo-bulbs are crowded on the rhizome, and 
they are so depicted in Wallich’s drawing of the Nepal plant. But in Sikkim. they 
are, in the few specimens hitherto collected by Mr. Pantling, as here described 
and figured, about one inch distant from each other. The flowers, however, agree with 
those of the Dehra Dun specimens and with Sir Joseph Hooker's description. The 
plant is quite leafless when flowering; its flowers are of a uniform pale yellow; it is 
rare in Sikkim. In his Century of Indian Orchids, published in the fifth volume of these 
Anrals, Sir Joseph Hooker has described and figured what he considers may either be 
a variety of this species or a distinct one, for which, in either case, he proposes the 
trivial name zonale. This plant was once found by Mr. Lister in Sikkim; he sent it to 
the Botanie Garden, Caleutta, where it flowered and was figurel in April 1877. It 
has oblong-ovate pseudo-bulbs, twice (rarely thrice) constricted transversely, as if formed 
of three internodes; and these internodes are vertically traversed by many deep grooves 
with tumid interspaces; the whole pseudo-bulb having (as depicted) somewhat the 
appearance of three superposed rows of green oblong beads; the pseudo-bulbs, moreover, 
emit surculi from their bases. We have unfortunately not been able to rediscover this 
plant in Sikkim. In а small living specimen of it received from Mr. J. S. Gamble, 
Director of the Forest School at Dehra Dun, and grown on the Cinchona Plantation in 
Sikkim, the pseudo-bulbs were distant from each other very much as represented in the 
figure of the Sikkim plant. There were also two or three horizontal lines on them, 
but so inconspicuous as not to be noticed without examination, 
Ртлтв 95.— Bulbophyllum polyrhisum, Lindl. Leafing and flowering plants, of natural sise. Fig. 1 
flower, 2 bract, stalked ovary, column, foot and lip, seen from the side, З lip, 4 column with 
its minute apical teeth and foot, 5 anther, 6 pollinia; all enlarged. 
8. BULBOPHYLLUM CyLINDRACEUM, Lindl. Gen. and Spec. Orchid., 53. 
Rhizome stout, "25 in. thick; pseud»-bulbs none. Leaf oblong-elliptic, acute, the base 
tapering to the long petiole; length of blade 5 to 12 in.; petioles nearly as long, chan- 
nelled. Scape 12 to 18 in. long, blackish-purple, the. pedicel with a few acute sheathing 
bracts and a pair at the base; spike cylindric, 2 to 3 in. long, nolding. lowers 
densely crowded and imbricate, dorsally compressed, *3 ог °35 іп. long, blackish- 
purple (almost black); floral bract of a paler colour, ovate-acuminate, longer than the 
