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188 CXXXVI. ORCHIDElE. [Den drocolla.<br />
pedicels shorter. Upper sepal lanceolate acute, laterals wider<br />
ovate-Ianceolate. Petals narrow spathulate, all pale yellow. Lip<br />
much shorter, base saccate, side-lobes very short broad truncate,<br />
hairy, midlobe very small truncate, callus oblong retuse, all<br />
yellowish with an orange spot near callus. Column foot narrow.<br />
Capsule slender, cylindric, 5 in. long. Hab. On orchard trees and<br />
bushes, very common. Singapore, Tanglin; Bukit Timah, etc.<br />
Negri Sembilan, Bukit Tangga Pass. Pahang, Tahan River; Pekan.<br />
Perak, Kwala Kangsa; Chanderiang (Kunstler); Temengoh,<br />
Dindings, Bruas. Tringganu, Bundi (Rostados).<br />
(4) D. alba Ridl. Journ. Roy. As. Soc. S. Br. 44, p. 191; Mat.<br />
i. 185.<br />
Stems 3 to 4 in. long. Leaves lorate-Ianceolate, fleshy, I to 2 in.<br />
long, '25 in. wide. Peduncles 4 in. long; racemes '25 in. long,<br />
thickened. Bracts ovate acuminate. Flowers white, '75 in. wide;<br />
pedicels '25 in. long. Sepals lanceolate acute. Petals smaller.<br />
Lip '25 in. long, base saccate pubescent, side-lobes curved blunt<br />
edged with short clubbed hairs, midlobe little longer, round blunt<br />
excavate; callus oblong truncate; white, light brown blotches inside<br />
and on column foot. Hab. On coffee and other trees. Perak,<br />
Kamuning, near Sungei Sipau (Machado). Province Wellesley,<br />
Caledonia Estate (Ridley).<br />
(5) D. maculata Ridl. Linn. Soc. xxxii. 381; Mat. i. 186.<br />
Stem 3 in. long. Leaves linear. Peduncles 3 in. long; racemes<br />
as long; rachis thickened. Bracts ovate acute. Flowers'5 in.<br />
wide. Sepals lanceolate-spathulate, laterals dilate at base. Petals<br />
narrower, all yellow. Lip side-lobes round, toothed pubescent,<br />
yellow spotted crimson, midlobe linear yellow, base of lip saccate,<br />
callus oblong retuse in centre. Column short broad with involute<br />
wings, foot rather long. Hab. Rare. Singapore, Bukit Mandai,<br />
Chan Chu Kang (Ridley).<br />
(6) D. ciliata Ridl. Journ. Roy. As. Soc. 5. Br. 44, p. 192;<br />
Mat. i. 186.<br />
Stem I in. long. Leaves crowded about 6, elliptic blunt, base<br />
narrowed, 2'5 in. long, '75 in. wide. Peduncles 2 in. long; racemes<br />
hardly thickened. Bracts ovate acute minute. Flowers '25 in.<br />
wide; pedicels as long. Sepals oblong blunt. Petals smaller,<br />
ochre yellow. Lip as long, sid_e-Iobes oblong, white edged long<br />
hairs, midlobe short, conic fleshy. Pollinia ovoid, caudicle oblong<br />
flat, indent at sfdes, disc half as long. Hab. Rare. Perak, Kamuning,<br />
Sungei Siput (Machado).<br />
(7) D. carnosa Rzdl. Journ. Bot. 1898, p. 216; Mat. i. 186.<br />
Stem 2 in. long. Leaves narrow linear acute not bilobed, 3 in.<br />
long, '25 in. wide; sheaths '25 in. long. Peduncles slender, 3 in.<br />
long. Racemes thick, I in. long. Bracts ovate acute. Flowers<br />
'25 in. wide; pedicels as long. Sepals and petals oblong-ovate<br />
dull yellow. Lip shorter, side-lobes long and broad, base saccate,
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