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ovoid, 1-4 cm x 2-10 mm, placed very close from 0.5 to 7.3 cm apart on rhizome.
Leaves two on each pseudobulb, from almost orbicular or elliptic to long elliptic,
rather obtuse, obliquely bilobes, petiole 0.5-1.3 cm. Inflorescence long surpass
the leaf, peduncle 6 – 15.9 cm, much longer than rachis, with 2 sterile bracts,
rachis 2-5.8 cm, bears 2-6 flowers. Flower white, open widely; sepal lanceolate 2.3 x 0.45 cm; petal the same shape and length, but much narrower; labellum
white and yellow, 1.6 cm long with several calli between side lobes and three larger one near to the apical end, side lobes erect, yellow with red stripes, obtuse,
the lower margin curved, mid-lobe triangular, acute; column arching, white
above, yellow with fine red stripes under, extending just as far as side lobes.
Distribution : Mt. Sago West Sumatra, Cameron Highland, Pahang, Mt. Tahan,
Peninsular Malaysia.
Habitat : mountain forest orchid from 1,700 m asl, flowering time: February, July,
and September.
Note : the most conspicuous character of this species is the peduncle three times
longer compare to the rachis. Leaves were also with wide variety in shape and size; from almost orbicular to elliptic and sometime longer. During this study
there was no specimen examined from Sumatra but Comber 2001 described this species from Mt. Sago, West Sumatra.
Specimen examined : Malay Peninsula, Pahang, H.N. Ridley 16133 SING;
Pahang, HN Ridley SING; Mt. Tahan, July 1923, CB Kloss 12133 SING; Mt Tahan, February 1921, E. Seimund 221 SING; Cameron Highland, September
1956, H.M. Burkill 860 SING; Cameron Highland, April 1930, 1,800 m asl, R.E Holtum and M.R. Henderson 23398 SING; Batang Padang, L. Wray Jr. 1616
SING.
11. Epigeneium macropodum Hook.f. Summerh. Plate 9
Dendrobium macropodum Hook.f., Fl. Brit. Ind. 5 1890 713. Sarcopodium macropodum Hook.f. Rolfe, Orch. Rev. 18 1910 238.
Katherinea macropoda Hook.f. A.D. Hawkes, Lloydia, 19 1956 96. Epigeneium macropodumHook.f. Summerh., Kew Bull. 1957 263; Comber,
Orchid of Sumatra 2001 681.
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Rhizome long, creeping, branching 4.5-6 mm in thickness, covered by
brown cataphylls. Root terete, fibrous, branching, wrinkle on surface, come from
lower part of the pseudobulb. The pseudobulb ovoid – narrower ovoid 3.3-6 cm x
8-17 mm, sharp angle, sulcate, shiny, 2.5-8 cm in distances. Leaves two on each
pseudobulb, long elliptic 3.9-18.3 x 2.3-3.6 cm, acute, obliquely bilobed, 3 second
major nerved on each side, coriaceous, petiole 3-5 mm. Inflorescence single on top of the pseudobulb, much longer than the leaf; peduncle 11.2-17.7 cm with 2-3
sterile bract ovate-triangular, acute; rachis 6.8-14.5 cm, with up to 15 flowers, placed 5-19 mm apart, ovary pedicel 2.2-4.9 cm, shorter toward the top. Flower
reddish brown when first open and becoming greenish brown later, about 3 cm
broad; sepal narrowly lanceolate, acute, 1.7 cm x 5 mm, the lateral one a little broader forming a short rounded mentum with their bases; petal somewhat shorter
and narrower; labellum trilobes, the side lobes erect and rounded, the mid lobe
almost circular at the apex, obtuse, some irregular thickened ridge calli from the base of the mid-lobe, and another 3 near the apex.
Habitat : mountain forest from 1,500 m asl, flowering on April, July, and August.
Distribution : Padang Panjang West Sumatra, Cameron Highland, Pahang, Mt.
Tahan Peninsular Malaysia.
Note : Summerhayes 1957 mentioned that this orchid also found in Java, but
during this observation there was no specimen collected from this island. The specimen examined from Sumatra was unavailable but Comber 2001 described
this species from around Padang Panjang, West Sumatra. The specimen from Sumatra also held in Leiden but locality is unknown.
Specimen examined : Malay Peninsula, Pahang, Mt. Batu Brinchang, Cameron
Highland 6,700 ft asl, April 17, 1930, M.R. Herderson SING; Cameron Highland, W. Steele SING; Pahang, Mt. Tahan, July 1911, H.N. Ridley SING;
Pahang, Mt. Tahan 5,000 ft asl, August 29, 1928 SING.
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12. Epigeneium pulchellum Ridl. Summerh. Plate 10
