All Floras      Advanced Search
FOC Vol. 25 Page 8, 10, 177 Login | eFloras Home | Help
FOC | Family List | FOC Vol. 25 | Orchidaceae

59. Aphyllorchis Blume, Tab. Pl. Jav. Orchid. ad t. 77. 1825.

无叶兰属 wu ye lan shu

Authors: Xinqi Chen & Stephan W. Gale

Sinorchis S. C. Chen.

Herbs, terrestrial, leafless, holomycotrophic. Rhizome short; roots fascicled, spreading, fleshy. Stem erect, fleshy, unbranched, usually pale brown, with loose cymbiform or cylindric sheaths enclosing proximal nodes and scalelike sterile bracts at distal nodes. Inflorescence terminal, racemose, few to many flowered; floral bracts membranous. Flowers resupinate, small to medium-sized, often with long pedicel and ovary. Sepals similar, free, often weakly concave-cymbiform. Petals similar to but shorter and narrower than sepals; lip adnate to base of column, 2-partite; hypochile often winged; epichile hinged at junction with hypochile and often deflexed, entire or lobed. Column arcuate, long, slender; anther borne at anterior margin of clinandrium, suberect, 2-locular; filament extremely short; staminodes 2 (1 on either side of column), apical, white, spotted with silver; pollinia 2, granular-farinaceous, caudicles absent; viscidium large; stigma concave, near apex of column; rostellum very small. Capsule usually pendulous.

About 30 species: mainly in tropical Asia and the Himalayas, extending as far north as Japan and south to Australia; five species (one endemic) in China.

1 Lip not distinct, similar to lateral petals.   1 A. simplex
+ Lip clearly distinct from petals   (2)
2 (1) Floral bracts shorter than pedicel and ovary   (3)
+ Floral bracts longer than pedicel and ovary   (4)
3 (2) Sepal 9-11 mm, apex obtuse to subacute.   2 A. montana
+ Sepal 30-35 mm, apex long cuspidate.   3 A. caudata
4 (2) Rachis 19-22 cm; flowers yellowish green; floral bracts linear to linear-lanceolate, 3-4 mm wide; lip contracted at middle into hypochile and epichile.   4 A. alpina
+ Rachis to 6 cm; flowers pale purplish brown; floral bracts ovate to elliptic-lanceolate, 6-8 mm wide; lip contracted near base into hypochile and epichile.   5 A. gollanii

Lower Taxa


Related Objects  
  • Aphyllorchis.pdf
  • PDF

    Flora of China @
    Browse by
    Advanced Search

    Flora of China Home




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