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