All Floras      Advanced Search
FOC Vol. 25 Page 404, 438 Login | eFloras Home | Help
FOC | Family List | FOC Vol. 25 | Orchidaceae | Bulbophyllum

18. Bulbophyllum sect. Pleiophylla J. J. Smith, Bull. Jard. Bot. Buitenzorg, sér. 2. 13: 34. 1914.

双叶石豆兰组 shuang ye shi dou lan zu

Rhizome creeping, roots sprouting mainly below pseudobulbs, spreading; new shoots arising from basal node of pseudobulb. Pseudobulbs distinct, apex with 2 leaves. Leaves deciduous, thin. Inflorescence solitary, mostly arising near pseudobulbs, an elongate or somewhat contracted several- to many-flowered raceme. Pedicel with basal node ± coinciding with attachment of subtending bract. Sepals: margins glabrous to ciliate, surface glabrous to hirsute, 3-veined; lateral sepals free (fused along their lower margins in Bulbophyllum cariniflorum and B. triste), ca. as long as dorsal sepal or slightly longer. Petals: margins glabrous, 1-veined; lip: margins without auricles or distinct lateral lobes, margins glabrous to papillose, adaxially glabrous to papillose. Column: stigma protruding at its base or not, foot short; anther: front margin projecting or not, abaxially with or without a low, rounded crest; pollinia 2 or 4, with inner ca. 1/2 as long as outer or shorter, all without appendages.

Nineteen provisionally accepted species: India to Indochina, Thailand, Sumatra; five species in China.

1 Flowers and leaves appearing at same time   (2)
+ Flowers and leaves not appearing at same time   (3)
2 (1) Lateral sepals distinctly keeled; leaves 12-15 × 2.7-4 cm, apex acute; scape shorter than leaves.   99 B. cariniflorum
+ Lateral sepals not keeled; leaves 3-7 × 1-2.1 cm, apex rounded and emarginate; scape much longer than leaves.   100 B. shanicum
3 (1) Lateral sepals connate along lower margins; pseudobulbs subglobose, broader than long.   101 B. triste
+ Lateral sepals free; pseudobulbs ovoid or ovoid-conic, longer than broad   (4)
4 (3) Sepals abaxially hirsute; rachis pubescent.   102 B. hirtum
+ Sepals abaxially glabrous; rachis glabrous.   103 B. suavissimum


Flora of China @
Browse by
Advanced Search

Flora of China Home




 |  eFlora Home |  People Search  |  Help  |  ActKey  |  Hu Cards  |  Glossary  |