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photograph of type from Oakes Ames Herbarium. Previously this species known as D. exilifolium. Carr named this species as Epigeneium verruciferum var.
pauciflorum. Comber probably missed the publication by Garay and Romero 1999 which has been transferred Dendrobium exilifolium to E. exilifolium and
proposed the same new combination name in 2001. Flower description was partly based on publication.
Specimen examined : North Sumatra, 4,100-4,500 ft.,Walter N. and Catherine M.
Bengham 1124 AMES, Image; North West of Lake Toba c. 5,000 ft, September 1931, C.E. Carr 2025 SING.
6. Epigeneium geminatum Blume Summerh. Plate 5
Desmotrichum geminatum Blume, Bijdr. 1825 552. Dendrobium geminatum Blume Lindl., Gen. Sp. Orch. Pl. 1830 77.
Sarcopodium geminatum Blume Rolfe, Orch. Rev. 18 1910 238. Katherinea geminata Blume A.D. Hawkes, Lloydia, 19, 1956 96.
Epigeneium geminatum Blume Summerh. comb.nov., Kew Bull 1957 262; Comber, Orchid of Java 1990 244.
Type: Java, collector unknown, s.n. L, holo, photo image.
Rhizome long, creeping, 3-5 mm in thickness, covered by up to 7-9
imbricate brown cataphyll, subulate, acute, partly persistent. Pseudobulb ovoid at
the lower part of the rhizome and cylindrical on the upper part, 1- 3.5 x 0.5 cm - 2.2 cm with distinct angle, sulcate, shiny, placed 2.3
– 17 cm apart on rhizome.
Leaves ovoid
– elliptic, sometimes lanceolate to rather linear, 2.5 – 14.5 x 0.9 – 2.2 cm, apex shallow obliquely bilobed, coriaceous, dark green sometimes with
purplish line at the margin, petiole 2
– 6 mm. Inflorescence from new growth
pseudobulb, mostly 2 inflorescences on each top of pseudobulb, rarely 1 or 3;
peduncle thin, 1.3 - 4.8 cm long; rachis 2.1- 6.5 cm, bring 5-9 flowers. Flower
small compare to other species, not open wide, light yellow or slightly peach;
dorsal sepal lanceolate, 1.3 x 0.3 cm, sub acute, 5 nerved; lateral sepal
lanceolate, 1.4 x 4 cm, acute, wider at base, 5 nerved; petal linear, 1.2 x 0.2 cm,
labellum c. 1 cm long, irregular calli at the base, another three between the side
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lobes and almost equal in size, sub acute, ovary and pedicel c. 2 cm; column 4
mm with 2 mm column foot.
Distribution : Mt. Salak and Mt. Halimun West Java, Siberut Island West
Sumatra, Mt. Kinabalu, Sarawak, Central Kalimantan Borneo, Pahang, Taiping Hills Peninsular Malaysia.
Habitat : Lower mountain forest from 700
– 1,100 m above sea level but sometime found in lower altitude. Flowering time: February to March, June to
August, and November.
Note : Comber 2001 did not include E. geminatum as species from Sumatra.
Base on this study there was a specimen collected from Siberut island, outside of Sumatra mainland on a lower altitude and has the same character.
Specimen examined : West Java, Mt. Salak 800
– 1,300 m asl, June 4, 1941, Bloemberger BO; Halimun Salak National Park, Cikaniki 1,000 m asl, July 20
2001, Asep Sadili 1030 BO; Sumatera, Siberut – Mentawai, Gunung Simapipit
Sikabaluan residence 300 m asl, May 15 1994, J.J. Afriastini 2720 BO; Central Kalimantan, Samba 340 m asl, February 3 1995, Jarvi, J.K Ruskandi A 5939
BO; Sarawak, Karangas Secondary Forest 3,500 ft asl, November 6 1974, Paul Chain SING; Lubuk Antu District, 2
nd
Div. 3,200 ft asl, March 17, 1974, Paul Chain SING; Pahang, Mt. Tahan 3,000-4,000 ft asl, August 28, 1928, R.E.
Holtum BO; Pahang, Fraser Hill 4,000 ft asl, November 1930, C.E. Carr SING; Malay Peninsula, Taiping Hills, 1902 SING.
7. Epigeneium gracilipes Burkill Garay G. Romero
