250 OECEIDS OF TEE SIEEIM-HIMALAYA.
two-thirds of the length of the ca\icUclo. Cansule siibcyliiidric, tumitl, '3 iu. long. Par.
and Roichb. fil. m Linn. Trans. XXX, 14-5; Kcichb. fil. in Walp. Ann. VI, 923; Hook,
m. Fl. Br. Ind. VI, 86. Euprohoscis ivjgmcea, Griff, in Cale. Joinn. Nat. Hist. V, 371,
t. 72; "Wight Ic. 1732.
Sikkim, afc low elevations; in flower during Angiist and September; Pantling
No. 235. Malabar; Jerdon. Teuasscrim; Parish. The iio\vers arc palo gi-ecn.
Pj.ate 331.—The.lum pijgmaa. Lindi. A tiiit of plants, of natural t
bract, ovary and flower, sida mac, 2 petals, 3 braot, ovaiy, lip and column,
of the column from below, 0 antliev, 7 pollinia ; uU enlarged.
•e. Fig. 1 piirt of rflcliiF,
> fmn behind, 4 lip, 5 view
2. Tiielasis loscifolia, Hook. fil. Ic. Plantar, t. 21óü.
Pscudo-hilbs conical, -5 to -75 iu. long, bearing at the apex a singlo narrowly obloug
or occasionally somewhat oblauceolate leaf, bluut and very minutely bifid at the apex
tmd naiTowed to the sessile base, 4 to 6 in. long and -q to -7 in, broad. SeaiJe from a
developing pseudo-bxilb, slightly longer than the adidt leaf, with one or two scattered,
shoi-t, thick, spreading sheaths along it and also several at the base, llaceme 1 to 2 in.
long. Flowers numerous but not crowded, mimitc, '2 in. long; Iract broadly ovate, acute,
much shorter than the ovary. Sepals without keels; the lateral pair ovate, bluut, the
dorsal longer and narrower. Petals narrowly ovate, sub-acute. Lip elliptic, blunt,
minutely bifid at the apex, otherwise enth-e, without side lobes, somewhat thickened in
the middle near the base, the upper surface (luite smooth. Column tapering to the
apex; the rostelhun long and narrow. Antlicr long-beaked, 2-celled, each cell with four
comi)ai-tmeuts; pollinia broadly elliptic; the caudicle veiy long and slender, slightly
dilated at the apex; gland small, oblong. Hook. fil. Fl. Br. Ind. VI, 87.
Silckim, in tropical valleys; in flower during July and August; Pantling No. 223.
Khasia Hills. The fiowers are green in colour-.
Pi,ATE ZZI.—Thelam longifolia, Hook, fil. A gro\ip oí plauts, of natural size. Fig, 1, flower with
ovary and bract, side vicic, 2 lip, 3 bract, ovary, eoiumu, anther, ami lip, from above, 4 view of the
colimm from underneath, 5 anther, 6 pollinia; all enlarged.
64. Phreatia, Lindl.
Cocspitose plants, often minute, with or without pseudo-bulbs. Leaves not plicate,
articulated on rather -wide equitant sheaths. Scape interfoliar and from the base of the
pscudo-bulb, ei-ect, racemose or spicate, many-flowered. Flowers minute, resupinate,
expanding centrifugally. Sepals equal, connivent or spreading; the lateral paii' adherent
to the eoiumu. Petals narrower than the sepals. Lip fleshy, entii-e, decui-ved, adnate to
the short foot of the column, broad or narrow. Cohmn short, witli a broad apex; the
rostcllum small, erect on the front edge of the ti-uncate apes, bifid. AnlJm- occiipying the
apex of the column; the pollinia eiglit in two rows, attached to a narrow caudicle lying
liorizontally and attached at a right angle to a gland contained in the cleft of the vertical
lostellmn. Capsule minute, ovoid. Species about ten, Malayan and Pacific Islands.
"We have removed this genus from Epidendreae to Vandcae. From the extremely dclicato testua'o
oC the flowers, it is impossible to make out the poUiniar struetuxe with certainty in dried siteeimens.
Very careful dissections of the living flowers have shown us that the eight pollen-masses are attached to
a caudicle which ends in ou elongated gland situated in the fork of the veiiieal bifld roatellum. Tho
LISTKEEAE. 251
position of the anther at ilrsfc glance appeal's to be erect, but a minuter examination shows that tho
pollinia and their caudicle lie horizontally on tho broad truncate apex of tho eolunin. Ou the edge
of this truncate apex stands the bifid erect rostcllum, and iu its cleft lies the gland to which thn
horizontal caudicle attaches itself. Tho genus is allied to Tlwkms and, as Sir Joseph Hooker remai-ks
iu Ic, Plant, sub t, 2155, the textm-e of tho petals in both genera is of the same soft, lax, succulent
nature.
PuRKATiA ELEGASS, Luidl. Geu. and Spcc. Orch., C3.
Pseudo-hilhs tufted, ovoid, compressed, '7'} in. long. Leaves thickly meinbitinous,
narrowly elliptic, sab-acute or acute, somewhat narrowed to tlie large tubular sheath,
4 to G iu. long and about •7o in. broad. Scapc erect, much longer than tlie loaves,
proceeding from the base of a pseudo-bulb bearing about tlu-ee distant convolute sheaths
half an inch long; the raceme about 4 in. long, densely-flowered, the flowers opening
from above downwards or sometimes from the centre towards the base and apex.
Flowers minute (only •125 in. across), white; the hraet lanceolate, equalling or somewhat
longer than the sessile ovary. Sepak sub-equal, ovate, acute, spreading; tho lietaJs
narrower. Up oblong, entire, sessile on the narrow foot of the eoiumu, de.lexod about
tho middle, its upper surface hispid or smootli, grooved down tlie midrib. RosteHmu
bifid, erect; pollinia sub-rotund, cohering to a single thin caudicle; the gland long,
narrow. Lindl. in Joum. Linn. Soc. Ill, 61; Hook. fil. Fl. Br. Ind. V, 811. Thelasis
elegans, Blimie Mus. Bot. Lugd. Bat. II, 187.
Sikkim, at Choongtiiaug; elevation 0,000 feet; in flower in August; Pantling
No. 295. Khasia Hills; G. Mann, King's Collectors.
Plate ZZZ.^Phrcutia elegnus, Lindl. A pknt, of natural size. Fig. 1 a flower, front viaw, 2 lip,
3 column with anther in si/ii, showing polliniar gland {p g) and stigma (•!}, 4 front view of the same, the
anther having been rcmoved to show better tlie forked rostcllum (r), 5 floral bract, ovary, column and
its foot, anther and lip, side viow, 6 lower surface of anther, 7 pollinia; all enlarged.
Tribe l\/.-USTEREAE.
Anther terminal (dorsal in Epipaetis), pollinia two or four, cohering by their sides,
without gland or caudicle (a rudimentary caudicle in Epipogmn)-, pollen powdery, granukuor
in small masses, never waxy.
Anther tnily terminal.
Pollinia with small thin oaudicles but no gland, lip spuwed . . . .
Pollinia without caudiclcs.
Lip flat, neither clawed spurred nor saccate, pendulous and usually
at light angles with the curved, more or less elongate, always
iuappeudiculate, column; sepals mid petals free, spreading or
reflexcd; leaves two (absent iu one species)
Lip not pendulous, transversely elliptic, neither clawed spuiTcd
nor saccate; its upper surface somewhat concave and with two
elongated tooth-like calli near its base; column witli a short
transverse horizontal sub-tiimcate process near its middle, and
at its base a sub-ereot tongue-llko 2-J,obed process
B5. Epipogim.
Axn. Eoy. Eor, üaüd,, Calcuita, Yot. VIII,