Prev Taxon: Genus Bulbophyllum section Tapeinoglossum
Current Genus: Genus Bulbophyllum section Uncifera
Next Taxon: Genus Cadetia
Bulbophyllum posticum J.J.Sm., Bull. Jard. Bot. Buitenzorg, sér. 2, 2 (1911) 19
Type: Kock, de 202 (holo BO; iso L)
Synonyms:
Rhizome creeping, or erect to pendulous, up to 60 cm long, 1-4 mm diam. Roots present only below the pseudobulbs, generally only along the older parts of the rhizome (occasionally a few roots may grow from below recently developed pseudobulbs). Pseudobulbs (narrowly) ovoid to orbicular, sometimes with very distinct, projecting ribs, 1-6 cm apart, 0.3-2.0 by 0.3-1.3 cm, not flattened. Petiole 1-5 mm. Leaf blade ovate to elliptic, 1.8-6 by 0.4-1 cm, index 3-15, tip acute. Inflorescences usually many together on a short sympodium, 0.7-1.6 cm, 1-flowered. Peduncle 0.2-0.6 cm; bracts 3-4, the longest 3.5-5 mm. Floral bracts tubular, 2-4 mm, tip acute to apiculate. Pedicel and ovary 3.5-6 mm, with the node 0.5-1.2 mm from the floral bract. Flowers widely opening. Median sepal ovate to elliptic, 5.5-9 by 2-4 mm, index 1.7-2.8, tip obtuse to acute; thin; glabrous. Lateral sepals slightly oblique, 5.5-8 by 2.5-5 mm, index 1.4-2.3; otherwise as the median sepal. Petals slightly oblique, 2.5-6 by 1.5-3.5 mm, index 1.6-1.9, tip rounded to acute; otherwise as the median sepal. Lip strongly curved, general outline ovate to elliptic, constricted approx. half-way, 1.5-4 by 0.8-3 mm, index 1-1.8 (not spread), tip obtuse to acute; rather thin; glabrous; adx. somewhat concave and with 2 distinct, erect, slender, more or less curved teeth near the base, convex towards the tip; abx. with an inconspicuous, retuse median ridge. Column from ovary to the tip of the stelidia 1-1.7 mm; stigma not protruding at its base, slit-like. Stelidia absent or inconspicuous, margins sometimes with irregular teeth. Anther abx. with an inconspicuous ridge towards its base; front margin somewhat protruding. Pollinia 4; the inner pair more than half as long as the outer pair. (After Vermeulen, 1993)
Pseudobulbs dark green to brownish or reddish. Leaves medium to dark green. Sepals and petals white or pale yellowish, with or without dark red-purple veins; occasionally entirely brownish red. Lip red-purple, the teeth at its base white.
Epiphyte in lower montane forest; 800-2500 m.
Malesia (New Guinea).
Intermediate growing epiphyte.
January, February, March, April, May, July, September, October, November, December.
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