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

1. Bulbophyllum sect. Leopardina Bentham & J. D. Hooker, Gen. Pl. 3: 502. 1883.

短葶组 duan ting zu

Rhizome creeping or straggling; roots sprouting mainly below pseudobulbs, spreading; new shoots arising from basal node of pseudobulb. Pseudobulbs distinct, apex with 1 leaf. Leaves persistent, thick. Inflorescences solitary, arising near pseudobulbs, 1-flowered or 2-4-flowered in an elongate or contracted raceme. Pedicel with basal node coinciding with attachment of subtending bract, or no more than 1 × diam. of pedicel above it. Sepals free, ± equal in length or lateral sepals somewhat longer, margins glabrous, 5- or more veined. Petals: margins glabrous to erose, 5- or more veined (3-veined in Bulbophyllum ambrosia); lip with or without antrorse auricles along margins well above its base, margins otherwise glabrous to partly or entirely erose or denticulate, adaxially glabrous to variously verrucose or papillose. Column: stigma not protruding at its base, foot distinct; anther: front margin not or slightly projecting, abaxially with a high, conic crest (a small crest in B. ambrosia); pollinia 4, with or without stipe, inner more than 1/2 as long as outer.

Seventy-two provisionally accepted species: Himalayas to W Pacific; seven species in China.

1 Proximal margin of stigma distinctly protruding.   1 B. striatum
+ Proximal margin of stigma not protruding   (2)
2 (1) Anther abaxially with a low, rounded crest   (3)
+ Anther abaxially with a high, conic or triangular and dorsiventrally flattened crest   (4)
3 (2) Lip margins entire.   2 B. ambrosia
+ Lip margins erose-lacerate.   3 B. pectinatum
4 (2) Pseudobulbs prostrate on rhizome for ca. 2/3 of their length   (5)
+ Pseudobulbs obliquely ascending, or prostrate on rhizome at their base only   (6)
5 (4) Lip adaxially with 2 high, straight ridges with entire crests; anther abaxially with a dorsiventrally flattened crest.   4 B. psittacoglossum
+ Lip adaxially with 2 low, wavy ridges with proximally erose crests; anther abaxially with a conic crest.   5 B. yunnanense
6 (4) Lip 5.5-8.5 × 4-6 mm; stelidia with a distinct, triangular tooth along lower margin.   6 B. griffithii
+ Lip 9.5-14 × 6-9 mm; stelidia with an inconspicuous, broadly deltoid wing along lower margin.   7 B. leopardinum


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