48 ORCHIDS OP THE SIKEIM-HIMALAYA.
13. Dendeobidu CKEPIDATUSI, Lmdl. in Paxt. Fl. Gard. I, 63, Hg. 45.
Slums pcnduloiiB, striate, greon and white, thin at the base, thiekonod upwaids,
coYercd ivlien dry with the long thin scarious sheaths of fallen loaTOS; length B to 18 in.
Zeaves Hnear-lanccolate, acnminate, 3 to 4 in. long, hroadth -4 to -6 in. Ftma-s '75
to 1 in. in diam., solitary or two or throo on Tory short hractoato pednnclos from the
very shghtly swollen nodes ot the leaBess stems; the stalked ovaries divergent,
very long, pnrplo. Sepali broadly oblong, snbeqaal, sub-obtuse. Pelals broadly
ovate, not longer than the sepals. Zip broadly obovate, pubeseent, the edges undulate
• the apex broad, sometimes retuse ; the base nan-owed to a short olaw with a
short transverse ridge in front of it and a small pit behind. Column very short,
b r o a d - mmlum short, obtuse. Antlm- very convex. Capuli clavate, l-To in. long.
Bot Ma., t. 4903, 6011. Veitch Man. Dendrob. 33; Hook. hi. Fl, Br. Ind. V, 740.
D. La„m«m, Liudl. in Jouru. Linn. See. Ill, 10; Dak. and Gibs. Bomb. Fl. 261.
DendnehUum .mam, Dalz. in Hook. Kew Journ. IV (185-2). 391.
Sikkim- in tropical vaheya ascending to 3,500 feet ; Pantling No. 308; in flower
in April and May. Assam and Khasia Hills; also in Upper Bm-mah, and in the
Conoan and Cauara in Southern India.
The flowers of this are either pink or white, the hp having a large yellow spot
on it. The species as found in Assam and the Khasia Hills has rather handsome
flowora but the form found in Sikkim is unatlraetive in appearance. It is very
interesting, however, as an example of a Dm-lroUum which is usually, if not invari
ibly self-fertile. An examination of many flowers by Mr. Pantling showed that
t h e 'pollinia had left the anther, and that the pollen had began to disappear in the
tissues of the stigma before the bad had fully opened. Fig. 3 shows the condition m
a bud iust about to open. In a plant brought from the Khasia Hills in February
„£ the present year, and which flowered at Mongpoo daring the followmg April, the
flowers were of the usual Assam and Khasia type. They were largo, handsome, and
remained fully expanded for five days, during which time no change occurred in the
L m n of any of them ; but not one of them was self-fertile. Tlie Sittim p ant
t h a s appears to owe its mean appearance to tlie fact that it is self-fertile, and to
represent a stage in the transition to cleistogamy.
P t .™ 66-2).^™«»». criiatm,, Linjl. A plant, of mi.ral Fig. 1 a How«, 2 lip,
3 column and it. foot, M. ...M.f ¿¡.J.terf ««i of th, fOlMm ... 1/» •hg.^a,
4 mther, S poUmin; M n.torjrf; 6 a leiif, of mlnml «a.
13. DENDBOUinM ADUSCUM, ^ 1 1 . in Bot. Reg. 1843, Misc. 62, 1840, t. 15.
Slcms branching or viviparous, thinner than a goose-quill, pendulous, 1 to 3 feet long.
Zmi;s narrowly lanceolate, acute or acuminate, obliquely and minutely bifid; lengtli
3 to 3 in breadth -35 to -75 in. Flowon -75 to -9 in. long, in short flexuoso
raeemes from the naked stems, the rscbis between the flowers zigzagged and with several
minute membranous scales; irorf sheathing, obtn.se, much shorlor than the stalked
ovary. Dorsal Bcfal ovate, acute; the lateral pair larger, triangular sub-rhomboidal.
I'etoh similar to tlie dorsal sepal, but broader. Up shorter than the lateral sepals,
adprcssed to the column, broadly elliptic, concave, its apex abruptly acuminate, its
inner surface pubescent but for a square glistering area, near the short docurved claw.
DESDEGBIUM. 49
CrAwnn very short, pubescent in front inside, with two large rounded crenulate and
beaked shoulders pointing forward; the foot long, strongly curved, tapering. Apex of
anther rich purple, papillose; its lip smooth, truncate, erose. Bot. Mag. t. 6784 ; Veitch
Man. Dendrob. 14 ; Walp. Ann. VI, 295; Hook. til. Fl. Br. Ind. V, 780.
Sikkim; in tropical valleys up to 2,000 feet; Pantling No. 273. Bhotan, Lister.
Assam, Khasia Hills and Upper Burraah. In flower daring June to August.
The prevaUing colour in the flower is pale pui-plo; the anther dark purple.
Pt.ATS 67 Dmdroliam adwifum, Wall. A plant, of natural i.sfi. Fig. 1 floral W t , stalked
ovai-y, column and lip, feeu from, the suk, 2 vei-tioal section of tbo foregoing, 3 lip, 4 column and its
foot with the autlier ... 3iiu, 5 anther, 6 pollinia; all enlarged.
14. DiHDKOBiroi CANDIDIJSI, Wall, in Liudl. Bot. lieg. 1838, 36; 1844, Misc. 32.
Stems much thinner than a goose-quill, cylindi-ic, 6 to 12 in. long, erect. Lcavos
narrowly lanceolate, the apex obtuse and obliquely bifid; length 2 to 3 in., breadth -35
to -35 in. Elmers 1 in. long, white, one to three from a short sheathed peduncle from
t h e leafless stems; sheaths of the peduncle -35 to -35 in. long, hyaline. Sepals broadly
lanceolate, sab-acute or obtuse, subequal. Petals like the sepals, but more acute. Lip
as long as tlie sepals, oblong-lanceolate, the apex suddenly acute; side lobes about the
middle short, rounded, incurved, the disc between them with an elongated callus. Column
short, the foot very broad and deeply excavated, Mentum broad, rounded, short. Anther
large, sub-orbiculai-, papiflose. Paxt. Fl. Gard. I, 63, fig. 41; Walp. Ann. VI, 286;
Hook. fil. Fl. Br, Ind. V, 735; in Ann. Roy. Bot. Gard., Calcutta, Vol. V, pt. 1,
12, t. 10. D. spatliaeeum, Lindl. in Jom-n. Linn. Soc. Il l , 15; Hook. fil. Fl. Br. Ind.
V, 737.
I n the Lachen Valley in Sikkim at an elevation of from 6,000 to 7,000 feet;
Hooker; Pantling No. 367; also in Western Sikkim, near Pemiongtchi; in iiower during
May and June. Khasia Hills.
This species closely resembles D. ameemim, Wall., but it has pure white flowers,
with only a spot of yellow near the base of the lip. It is a very local and scarce
plant. Judging from the descriptions of D. spathacenm, Lindl., that species must Iw
identical with D. eamlidtm, which as the earlier published name must be kept up. We
have therefore reduced D. spatliacetim here.
P l a t e ^S.—Dondrolium eamlidttw, Lindl. A plant, of naiarat site. Eig. 1 a bract, stalied ovary,
column and lip, mti from ilie side, the sepals and petals having been remosed, 2 lip, 3 vertical section of
lip to show the outline of the callus within, 4 column with its foot, 5 anther, 6 pollinia; all enlarged.
15. Dekdeobium AMffiK-jM, W^all. in Lindl. Gen. and Spec. Orchid., 78,
\exel, si/it. D. aphylhat).
Stems slender, slightly thickened at the nodes, pendulous, 12 to 30 in. long.
Leaves oblong-lanceolate; the apex acute, oblique; length 2-5 to 4 in., breadth -35 to
•7 in. Flowers 1-5 (rarely 3 in.) across, two or three from very shoi-t bracteate
peduncles springing from the nodes of leafless stems. Sepals oblong-lanceolate, obtuse
or acute. Petals larger, ovate, obtuse or acute. Lip as long as the sepals, oblongobovate
(when spread out), clawed at the baso; the side lobes broad, rounded, convolute j
ASM. EOY. BOT. GARO,, CAI.outta, TOL VIII.