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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
Dendrobium gracilipes Burkill, J. Str. Br. Asiat. Soc. 79 1918 45. Epigeneium gracilipes Burkill Garay Romero, comb.nov., Harv. Paper Bot. 4
1999 475. Epigeneium gracilipes Burkill J.B. Comber, comb. nov. Orchid of Sumatra, p.
675. 2001. Type: Riau Archipelago, cultivated in Singapore, K. Saheb s.n. SING, holo n.v.
Rhizome long, quite thick, bearing pseudobulb c.4 cm apart. Pseudobulb
obliquely ovoid, shiny green, initially with a sheath which drops early, c. 3 x 1.4
cm in size. Leaves two on each pseudobulb, narrowly elliptic, sessile, apex
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bilobe, the lobe obtuse, to 16 x 2.5 cm. Inflorescence from top of pseudobulb, two flowered, longer than the leaves. Flowers mostly ivory white; dorsal sepal
placed at right angle to the ovary, acute; lateral sepal 1.5 x 0.5 cm, decurrent on
the column foot forming a rectangular mentum, 5 mm in length, curved above
this, acute; petal linear, 1.5 x 0.15 cm, acute; labellum trilobes, side lobes erect,
the upper margin straight, spotted purple on the inside and with purple upper margin and apices, the lower margin saffron yellow, the mid-lobe broad basally,
more or less acuminate apically, its margins and apex ivory white with some
yellow toward the top, with three keels; column ivory white flushed red near the
base.
Distribution : Riau Archipelago Riau.
Habitat : lowland forest from 300 m asl.
Note : There was no specimen available for this species, the description based on
the publication Garay and Romero 1999, Comber 2001. Garay and Romero transferred this species to Epigeneium in 1999, but it seems this publication was
overlooked by Comber and in 2001 he published the similar new combination with previous ones.
8. Epigeneium laurifolium Kraenzl. Summerh.
Sarcopodium laurifolium Kranzl. In Engl., Pflanzenr. Orch. Mon. Dendr. 1: 328 1910.
Dendrobium laurifolium Kranzl. J.J. Sm., Enum. Orch. Sumatra 1933 286. Katherinea laurifolia Kranzl. A.D. Hawkes, Lloydia, 19 1956 96.
Epigeneium laurifolium Kranzl. Summerh., Kew Bull. 1957 263; Comber, Orchid of Sumatra 2001 675.
Type: West Sumatra, Mt. Singgalang, July 1901, Odoardo Beccarii 10083 FL, holo, n.v.
Rhizome long, creeping, pseudobulb placed 4-6 cm apart. Pseudobulb c.
4 x 2 cm, ovoid, quadrangular, when dried orange and shiny. Leaves c. 8 x 3 cm, oblong, incurved apically, more or less bilobe. Inflorescence well surpassing the
leaves, 25 cm or longer, the rachis with up to 25 flowers; bracts triangular, acute
4-5 mm long, ovary and pedicel 3 cm. Flower rather small for the genus; dorsal
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sepal 1.3 cm long, oblong, obtuse; lateral sepal 1.3 x 0.5-0.6 cm, triangular,
oblong, forming a rectangular mentum with their bases; petal strap shaped, same length as sepals; labellum trilobes, side lobes oblong, rounded in front, 6-7 mm
long, mid-lobe transversely oblong to rhomboid, acute, 3-4 mm long, three keels from the base of the labellum, the side one larger than the center ones, another
three keels in the middle of the labellum, the center one extending to the base of
the labellum; column slender. Distribution
: Mt. Singgalang, West Sumatra.
Habitat : mountain forest, found at 1,900 m asl.
Note : There was no specimen of this species found during this study. The type is
maintained in Florence Herbarium Fl and inaccessible through the website. The description was based on Kraenzlin 1910 and Comber 2001.
9. Epigeneium longibulbon Destri sp. nov. Plate 6-7
