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BO; Central Java, Dieng, Wonosobo, 2,550 m asl, Irawati 910 BO; West Sumatra, Mt. Talamau 2,100 m, May 1919, Bunnenmeijer 921a BO.
3. Epigeneium dempoense J.J. Sm. Summerh. Plate 2
Dendrobium dempoense J.J. Sm. in Bull. Jard. Bot. Buitenz. 3 1920 67-68. Sarcopodium dempoense J.J.Sm. Carr in Journ. As. Soc. Malaya, 11 1933 87.
Epigeneium dempoense J.J. Sm. Summerh. comb.nov., Kew Bull. 1957 261; Comber, Orchid of Sumatra 2001 679.
Type : Mt. Dempo, South Sumatra, E. Jacobson and Ajoeb 443, August 9, 1916
BO, holo
Rhizome stout, creeping, 5 mm in thickness, covered by c. 10 imbricate
brown cataphylls, c. 0.5-5.1 cm long. Pseudobulb placed 3.2-3.6 cm apart along
the rhizome, 4.4-5.6 x 2-2.4 cm, ovoid - oblongoid with 4 sharp angles, sulcate.
Leaves 2 on each pseudobulb, 11.9-15 x 3.2-3.6 cm with 4 second major nerves,
petiole 0.9-1.5 cm. Inflorescence single, from top of pseudobulb; peduncle 17.8 cm with 2 sterile bracts; rachis 10.7 cm, bring 11 flowers, open at the same time,
placed 0.6-1.7 cm apart. Flower c. 4.3 x3 .1 cm in size, yellow, tip of the labellum red; dorsal sepal lanceolate, obtuse, 2.25 x 0.43 cm; lateral sepal obliquely
oblongoid, 2.3 x 0.8 cm; petal narrowly lanceolate-spatulate, acute, 2.35 x 0.54 cm; labellum recurved, trilobed, 1.55 x 1 cm when spread out, with four very
short ridges from the base and three more before the mid-lobe, side lobes erect, triangular, obtuse, mid-lobe recurved, ovate and rounded, 6.5 x 8 mm, its broad
margin very warty; column straight, c. 8.5 mm long. Habitat
: Collected from Mt. Dempo, South Sumatra at 1,400 m asl, flowering time: August.
Distribution : South Sumatra Mt. Dempo.
Note:
According to Smith 1920, this species differs from E. laurifolium and E. macropodum by the larger pseudobulb and leaves, laxer and less flower
inflorescence, much larger flower and the lip with different calli, and very warty mid-lobe. The description was based on single specimen with unopened flower.
Flower description was partly based on publication Smith 1920.
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Specimen examined : South Sumatra, Mt Dempo 1,400 m asl, August 9, 1916 E.
Jacobson and Ajoeb 443 BO.
4. Epigeneium elongatum Blume Summerh. Plate 3
