THE FLORA OF THE MALAY· PENINSULA

Dendrobium. ] (;XXXVI. ORCH1DEk:. 49
(54) D. Foxii Ridl. J ourn. Bot. 1900, 70; Mat. i. 53.
Stems slender, 3 ft. long, red. Leaves lanceolate acuminate,
4 in. long, I in. wide. Racemes'5 in. long. Flowers 7 to 10, rosy
white, I in. across; pedicels I in. long. Sepals ovate acute, laterals
more blunt curved, ·6 in. long; mentum thick curved dilate towards
the acuminate tip. Petals oblong obovate fimbriate, nearly '75 in.
long. Lip, claw narrow, linear, limb abruptly pandurate bilobed,
rounded fimbriate, white. Column arms short blunt, orange.
Hab. Perak, Thaiping Hills (Fox).
(55) D. clarissimum Ridl. J ourn. F.M.S. Mus. iv. 65.
Stem about I ft. long, flexuous, '26 in. through. Leaves thin
lanceolate acute, 2 to 4 in. long, base round, '5 in. wide. Raceme
sub-terminal of 4 or 5 flowers on a raceme 2 in. long, white, I in.
wide. Pedicel 1'5 in. long. Sepals ovate acute, broad; mentum
I in. long, cylindric then dilate, tip acute. Petals obovate blunt,
larger, tip slightly rosy. Lip, claw linear, limb quadrate, edge
fimbriate. Column arms orange. Hab. Mountain forests, rare,
Pahang, Telom near the cascade, only a few plants seen
(Ridley).
(56) D. chloroleucum Ridl. Jaunt. Roy. As. Soc. S. Br. 61,
P·38.
Stem slender, 2 ft. long, '12 in. through, internodes 2 in. long.
Leaves thin lanceolate acute, 4 in. long, '36 in. wide. Flower I on
pedicels '75 in. long; peduncles I in. long. Sepals lanceolate,
'5 in. long; mentum long, curved acuminate blunt, I in. long.
Petals narrower, all cream colour, greenish at back, tip of sepals
and mentum. Lip entire spathulate, 1'25 in. long, claw linear
with a V-shaped keel at base, limb oblong narrowed into claw,
edges undulate, '5 in. wide, canary yellow. Column base green,
arms orange. Hab. Perak, Gunong Kerbau (Haniff).
(57) D. suhflavidum Ridl. J ourn. Linn. Soc. xxxviii. 130.
Stem slender, 18 in. long, '12 in. thick, internodes 2 in. long.
Leaves lanceolate acuminate acute, 3 in. long, I in. wide, 5-nerved.
Racemes from old stems, '75 in. long. Flowers 2, cream-colour
spotted crimson, 1'5 in. long, '5 in. wide. Sepals, upper lanceolate.
laterals triangular much wider; mentum horn-shaped, tip curved.
Lip lanceolate, claw narrow, limb entire blunt, '5 in. wide, deeper
yellow spotted red-brown. Hab. Local. Pahang, Gunong Tahan
at 3000 to 6000 ft. altitude (Robinson, Ridley).
(58) D. tropreoliflorum Hook. fil. Ann. Bot. Gard. Calc. v.
pI. 17; Ridl. Mat. i. 62.
Stem elongate flexuous thickened above, I ft. long. Leaves
linear-oblong acute, 2'5 in. long, I in. wide. Raceme I to 2 in.
long. Flowers 6 or more, I in. long. Sepals triangular-ovate
acute, '25 to '5 in. long, deep purple; mentum 4 times as long,
yellow. Petals obovate round acute, deep purple. Lip as long as
sepals, claw linear gradually dilate to the lateral lobes, between
FI.M.P , •. )l: