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

16. Bulbophyllum sect. Stachysanthes (Blume) Averyanov, Opred. Orkhid. Vetnama. 276. 1994.

少花微球组 shao hua wei qiu zu

Diphyes sect. Stachysanthes Blume, Bijdr. 312. 1825.

Rhizome creeping or straggling; roots sprouting mainly below pseudobulbs, spreading; new shoots arising from basal node of pseudobulb. Pseudobulbs inconspicuous compared to size of plant, apex with 1 leaf. Leaves persistent, thick. Inflorescence solitary, mostly arising near pseudobulbs, 1-flowered, or an elongate or contracted 2- or 3-flowered raceme. Pedicel with basal node ± coinciding with attachment of subtending bract. Sepals free, ± equally long, margins glabrous, 3-veined. Petals: margins glabrous, to erose or denticulate, 1-veined; lip: margins without auricles or lateral lobes, margins ± glabrous to papillose, adaxially glabrous. Column: stigma protruding at its base or not, foot very distinct to short; anther: front margin projecting or not, abaxially with or without a low, rounded crest; pollinia 2 or 4, inner ca. 1/2 as long as outer or smaller, all usually without appendages.

Seventy-two provisionally accepted species: India to W Pacific; five species (three endemic) in China.

1 Inflorescence with 5 or more flowers.   92 B. apodum
+ Inflorescence with 1-3 flowers   (2)
2 (1) Rhizome very short, nearly invisible; leaves 3-5, in clusters.   93 B. pauciflorum
+ Rhizome elongate; leaf solitary, well spaced   (3)
3 (2) Lip adaxially with 2 calli.   94 B. hainanense
+ Lip adaxially without calli   (4)
4 (3) Sepals 6-16 mm.   95 B. drymoglossum
+ Sepals 2.5-4 mm.   96 B. tokioi


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