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

10. Bulbophyllum sect. Hirtula Ridley, Mat. Fl. Malay. Penins. 1: 68. 1908.

硬毛组 ying mao zu

Rhizome creeping; roots sprouting mainly below pseudobulbs, spreading; new shoots arising from basal node of pseudobulb. Pseudobulbs distinct, apex with 1 leaf. Leaves persistent, thick. Inflorescence solitary, arising near pseudobulbs, an elongate raceme. Pedicel with basal node ± coinciding with attachment of subtending bract or well above it. Sepals free, ± equally long, margins ciliate, adaxially glabrous to hirsute, 3-veined. Petals: margins ciliate, 1-veined; lip: margins with a retrorse auricle immediately next to ligament, without lateral lobes, margins ciliate, adaxially glabrous, finely papillose, verrucose, finely pubescent or velutinous. Column: stigma protruding at its base or not, foot distinct; anther: front margin not projecting, abaxially with a rounded crest; pollinia 4, inner 1/2 as long as outer or longer, all without appendages.

Forty accepted species: India to the Philippines and Sulawesi; four species in China.

See the revision by Vermeulen (Gard. Bull. Singapore 54: 26. 2002).

The New Guinean Bulbophyllum phreatiopse J. J. Vermeulen is better excluded.

1 Sepals adaxially glabrous.   38 B. secundum
+ Sepals adaxially partly or entirely pubescent or pilose   (2)
2 (1) Lip distally pouch-shaped, deeply concave adaxially.   39 B. scaphiforme
+ Lip distally convex, flat, or only slightly concave   (3)
3 (2) Lip 2.8-4.2 × 1-1.6 mm, abaxially convex toward tip.   40 B. nigripetalum
+ Lip 5-7 × 2-3.3 mm, abaxially ± flat to slightly concave toward tip.   41 B. nigrescens


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