^^^ ORCHIDS OF THE SIKEIM-HIMALAYA.
15. IIAHENAEIA DIEGIASA, King and PautHiig in Joura. As. Soc. Beng,,
Vol. LXV, Pf. 2, 133.
A sloiidor plant not oxooodiiig 12 Indies in hciglit. Sinn at its baso Tritìi a
slieatlilng Uimt oblancoolato bract 1 In. long. Leaves throe or four, sessile, 1 to l'7ó In.
long, soattered along tlio stem at distant intervals and becoming smaller npivards, tlio
uppermost bract-like, nil more or less oblong-lanceolate irltli snb-acnte apices and broad
slieatlilng bases. Spike 3 to 4 in. long, la.tly-flowered. Fbwer (inchiding tbo spm-) -ó
to -6 in. long; iimet ioliaceous, diminishing upwards, OTate-Ianceolate, as long as or
oxceeiling the «essilo scabrld slenderly-beaked oyaiy. Dorsal igjoi m-ate-laiioeo'ate ; the
lateral pair nanwly oblong, bhmt, leae.-ied. Petah erect, lanceolate, sub-acute, with
Tery oblinuo bases, slightly undulate on their inner margins. Lip rather ilcsliy, oonvc-i,
straight, deflexed, a Kttlo longer than the lateral sepals, narrwly oblong-trlangnlar,
witii two small rounded amides near its base, the margins In its lower half obscurelv
waved and with a short abrupt bond quite at the apen. Spur slender, Incmwod, equal
to or sHghtly longer than the ovary, shghtly compressed laterally. Column short and
broad. A„lher-cens iKstant, davate, tlleir tubes rather long and curved inwards ; j,olimi,
ovoid; fheh- caudiclos long, slender; the glands small, discoid; shmine.le, large,' smooth,
cyliiidrio, situated vertically by the outer sides of the anther-colls. Stigm,! conjoined
into a tran,5ver,sdy oblong broad band Ij-ing above tho entrance to the spur and
between the glands of the polhnia, the upper margin of the conjoined stigmas bordered
b y a narrow band.
Sikkim, In the Laohen valley, elevation 11,000 feet; in flower during August-
Pantling Ko. 407. ° '
The coloru- of the flowers is green.
A very distinct species bdonging to tho section n, h g h s , a . The floral bracts are
leaf-like and gradually decrease In size upwards. The size and position of the very large
stigma stretching across tho wido column ahnost to Its edges, and situated above the
opening of the spur, aro good distinguishing marks of this species. It is dedicated to
31r. -ft". T. TJiiselton-Dyer, F.K S., C.M.G., C LE. , Director of tl,o Eoyal Garden,
Ivew-
Plate 4 1 S .—B y e r i a n a , King and Pantling. A plant, of miwal she. Pig. 1 bract, ovary
and flower, 2 column sliowing tlie aatlier-cells and tlie glands of the poUinia {p g), tlie ataminodes (i),
tlie conjoined stigmas («), aud tlie moath of the spur (c), 3 bract, ovary and spur, in profile, 4 tlie
petals and lip, separated and spread out, 5 section of spur, 6 poUinia; a// enlarged.
10, HABENAEIA BIEKMANNIANA, King aud Pantling i
Vol. LXIV, Pt. 2, 343.
Journ. As. Soc. Beng.,
licigbt of plaut 9 to 15 in.; foiers.cylindric-ovoid, 1-2.5 in. long, sparsely liairy.
Stem rather stout, with one or two wide-mouthed sheaths near tlie base. Loaves four or
fÌTc, cauline, scattered, amplexicaul, lanceolate, acuto, boldly nciTcd, 2 to 3 in. long •
stem aboTC the leaves with a lanceolate bract. Spilte 4 in. long, rather sparsclj-floworcd ;
Iract liiicar-lauceolate, acuminate, exceeding tho sessile and Bcarcely beaked ovary.
Flowers -3 in. long. Sepals and petah sub-equal; sepals orate-lanceolate, with oblique
bases, concave, sub-acute, cohering and, with the triangular-lanceolato petals, forram"-
a liood from, the base of which the lip and spur project. Lip fleshy, much decui-ved,
lincar-oblong, tapering slightly to the obtuse apex, with minute and tootli-like sid:? lobes •
HABE>'AEIA. 319
spur about as long as the lip, cui-ved, sub-clavate, dorsally compressed Column arching
over tho entrance to tho spiu-, very short. Anther-cells nearly parallel; poUinia broadly
pyriform, longer than the cuivcd stout caudicles, glands oblong; slaminodes oblong,
attached externally to the anther-cells. Stigmas two, small, oblong, lying at each side
of tho entrance to the spui-.
Sikkira, on Sinchal, at an elevation of 8,000 feet; Sin-ga-le-la, elevation 10,000
feet; lloworing in July; Pantling No. 332.
A vüi-y distinct species; dedicated to the memory of the late Adolf Biermann, for
many years resident on the Goverimient Cinchona Plantation in Sikkim, aud who died
as Cui-ator of tho Botanic Garden, Calcutta,
Plate 419.—Sahenaria Bieiitwnniana, "K"iTig and Pantling. An entire plant, of natural size.
Kg. 1 bract, ovaiy and flower, 2 column showing the back of the anther-cells, the staminodes, stigmas
(s), entrance to the spur and the hose of the lip, 3 lip, 4 the petals, 5 section of spur, taken fi'om
its widest part, 6 poUinia; all enlarged.
17. IIABESARU DESSA, "\YaD. in Lindl. Qen. and Spec. Orch., 326.
Stem 12 to 30 inches. Tuhers oblong. Stem clothed iii its lower part with long
loose blunt sheaths. Leaves three to five, narrowly elliptic, acute, tapering very Kttle to
the long sheath; leng-th 2-5 to 4 in,, breadth '75 to l o in. Peduncle of the spike 6
to 18 iuches long, bearing a few Hncar-lancoolate bracts, diminishing in size upwards.
Spike Ö to 12 or even 18 in. long; its rachis short, i-ather densely flowered. Flowers
•35 in. across; Jloral hract lanccolate, acuminate, ciliolate, longer than the tumid shortlybeaked
cmwed short ovary. Sepals sub-equal, thick, ciliolate, clliptic-oblong, obtuse,
the dorsal erect and concave; the lateral pair narrower, roflosed. Petals nearly as
long as the sepals, elliptic-oblong, with obKque bases aud blunt apices, the exposed
maa-giu ileshy, that overlapped by the dorsal sepal thin. Lip as long as the sepals,
liuear, obtuse, with a transverse callus at its base close to tho colimin; spur clavato,
half as long as the ovary, pcudidous, comprcssed laterally. Column short, broad. Anthercells
distant, parallel, without tubes; siaminodes large, consisting of two imited elongate
processes; tho upper pair rough and parallel to the lower halves of tho anther-cclLs;
the lower pair smooth, their apices converging inwards below the stigmas aud almost
meeting over the base of tho lip; poUinia elliptic, tapering very little to the base,
tho caudiclcs short; the glands oblong, situated at tlie sides of the opening into the
spm*. Stigmas two, small, sub-orbicular, convex, lying between the glands of the poUinia
and the staminodes. Hook. fil. Fl. Br. Ind. VI, 153; Kräntzlia in Engl. Bot. Jahrb.
XVI, 216. Piatanthera densa, Lindl, in Wall. Cat. 7046. P. elavigera, Lindl, Gen. and
Spec Orch., 289.
Sikkim, in tho Lachong valley and on. tho Sing-ga-le-la range, at elevations of
from 8,000 to 12,000 feet; in flower during July and August; Hooker, Gammie,
PantHng No. 413. Westward along the range to Simla; also in Chnmbi in western
Bhotan.
The colom' of the flowers is green throughout.
Pl,vti! i'id.—Eabenaria denaa, "Wall. A plant, of natural eize. Pig. 1 a flower, 2 profile view of
bract, sessile oTary, column and lip with its spur, 3 the petals, 4 lip, 6 column showing the callus (c)
at the base of the lip where the lattar joms the column, the stigmas (s), staminodes (¿), oiid entrance to
the spur (>«), 6 section of spur, 7 apes of tho same, 8 poUinia; all enlarged.