A CENTURY OF INDIAN ORCHIDS; (7. D. HOOKER). 31 
broader than long, pure white, subequally 4-partite, the divaricating recurved obtuse 
segments of the midlobe being very little broader than the similarly divaricating 
recurved sidelobes; spur very long and slender; a minute carunculate 2-lobed callus is 
placed at the very base of the lip close to the mouth of the spur. 
A very handsome plant. The flowers are all green, except the lip in a drawingI made of it 
in Sikkim, and I did not observe the remarkable rhizome, which in plate 44 is represented as stout, 
horizontal, densely fibrous, and bearing a series of closely set conical green pseudobulbs, each with six 
or seven horizontal constrictions, and a small terminal tubercle, and emitting thick vermiform 
roots from the joints. If these are short stems of previous year’s growth denuded of sheaths and 
leaves, they must increase very greatly after their denudation, for they diminish in size as they 
approach the flowering and leafing stem which terminates the rhizome. 
Fig. 1, flower; 2, ditto, with the sepals and petals detached and lip removed; 3, lip with the spur removed; 4, top of 
column ? ; 5 and 6, anther; 7 and 8, pollinia :—all enlarged. 
PLATE 45. 
CALANTHE CHLOROLEUCA, Lindl. 
C. chloroleuca; rhizomate robusto repente, caule robusto foliis (sub-anthesin imma- 
turis) elongatis petiolatis elliptico-lanceolatis, scapo elongato, bracteis parvis persisten- 
tibus, sepalis ovato-lanceolatis acuminatis petalisque lanceolatis viridi-flavidis, labello 
column adnato albo basi aureo, lobis lateralibus oblongis rotundatisve, terminali late 
obcordato v. orbieulari 2-lobo, calcare cylindraceo sepalis subsequilongo, Lindl. Fol, 
Orchid. Calanthe, 10; Walp. Ann. vi. 920; Hook. f. Fl. Brit. Ind. v. 852. C. galeata, 
Lindl. 4. c., Walp. l c. | 
Нав.--Әіккім HIMALAYA; alt. 6—8,000 ft, J. D. ولا‎ 
Rhizome stout, fleshy, creeping, as thick as the little finger, with tuberous pseudo- 
bulbs on the upper surface and stout vermiform roots from the lower, stem as stout 
as the little finger. Leaves few, very young at flowering time, when mature a foot 
long, long-petioled, oblong-lanceolate, strongly nerved. Scape 6—10 in. high or 
less, raceme lax-fld. bracts + in., ovate-lanceolate, green, not equalling the ovary ; 
pedicels with ovary 1—3 in, Sepals 2 in. long, ovate-lanceolate, yellow-green, sometimes 
streaked with red; petals 3-nerved, usually more yellow than the sepals, lanceolate; lip 
white, yellow towards the base, sidelobes sometimes incumbent on the midlobe; spur 
straight, green, hardly longer than lateral sepals, glabrous or puberulous. Capsule 11 
in. long. x 
Lindley founded C. chloroleuca on specimens of my own collected in Sikkim in 1848, aided by 
the figure which I here reproduce. It differs from С. herbacea (Tab. 44, also founded on Sikkim 
gpecimens of mine) in the form of the lip, much shorter spur, colour of the flowers, and in the leaves 
of this not being fully developed at the flowering time. Lindley further described, also from a drawing 
of mine, as C. yaleata, what 1 believe to be a faded specimen of C. chloroleuca with sepals connivent, 
thus giving & hooded appearance to the flower. The Himalaya species of Calanthe are, however, very 
little known, and much more numerous specimens of C. chloroleuca and C. herbacea are wanted, together 
with better drawings than those here given of the nature of the rhizome, which in both species 
especially wants elucidation. 
Fig. 1, side, and 2, front view of flower — enlarged. 
