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FOC | Family List | FOC Vol. 25 | Orchidaceae | Bulbophyllum

7. Bulbophyllum leopardinum (Wallich) Lindley, Gen. Sp. Orchid. Pl. 48. 1830.

短葶石豆兰 duan ting shi dou lan

Dendrobium leopardinum Wallich, Tent. Fl. Napal. 39. 1826; Bulbophyllum colomaculosum Z. H. Tsi & S. C. Chen; Sarcopodium leopardinum (Wallich) Lindley.

Rhizome 2.5-8 mm in diam., sections between pseudobulbs 1.2-4 cm, bract fibers moderately persistent, sometimes forming a loose net around pseudobulb. Pseudobulbs close together or distant, often somewhat prostrate proximally, ovoid, 2-5.5 × 1-2.5 cm. Petiole 2-8 cm; leaf blade elliptic to obovate, 3.5-18 × 2-6.5 cm, obtuse to acute. Inflorescence erect to spreading, 5-10 cm, 1-flowered or a raceme, 2-flowered; peduncle 0.6-2.5 cm; bracts ca. 2, longest 6-10 mm; rachis 0.2-0.7 cm; floral bracts tubular, 7-14 mm, acute. Flowers resupinate, moderately opening, (creamy) yellow to (pale) green, often partly spotted or suffused with red or purple, sometimes with a yellow halo around numerous red or purple spots, lip yellow, adaxially strongly suffused with red. Pedicel and ovary 28-50 mm. Dorsal sepal recurved with top incurved, elliptic to ovate-triangular, 14-20 × 6.5-13.5 mm, rather thick, glabrous, base rather broadly attached, margin entire, apex truncate and apiculate to acute; lateral sepals free, recurved, ovate to triangular, 15-23 × 10-15 mm, obtuse and apiculate to acute, otherwise as dorsal sepal. Petals recurved, elliptic to ovate, 10-14 × 5-9 mm, rather thick, glabrous, base rather narrowly attached, margins entire, sometimes slightly erose proximally along lower margin, apex acute to acuminate; lip recurved, ovate, 9.5-14 × 6-9 mm (all without artificial spreading), thick; abaxially with a truncate median ridge up to 2/3 of length of lip, surface glabrous; adaxially slightly concave proximally, convex distally, with a median slit over most of length of lip, proximally deepening and widening into a cavity bordered by 2 short, distally converging ridges, with 2 more ridges with straight, proximally erose-verrucose crests starting at lacerate part of margin and running almost parallel or converging slightly over most of length of lip, surface in between glabrous, surface toward margins almost glabrous to finely rugose-verruculose, margins denticulate-lacerate at ca. 1/4 of length of lip, otherwise ± entire, apex obtuse. Column 4-6.5 mm, stigma inside without keels, at its base without teeth, column foot without a tooth above ligament; stelidia triangular, 1-2 mm, acute, with or without a small, deltoid, obtuse tooth along upper margin, with an inconspicuous, widely deltoid, obtuse wing along lower margin, ca. halfway along column; anther abaxially ± glabrous and with conic, sharp crest; front margin not drawn out, ± entire; pollinia without a stipe. Fl. Apr-Aug, Oct.

Epiphytic in forests, also lithophytic; 1300-3300 m. S Xizang, S Yunnan [Bhutan, India, Laos, Nepal, N Vietnam].


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