foc
《中国植物志》英文修订版
Flora of China
  FOC Vol.25 (2009)              | Family List  Orchidaceae  PDF Agrostophyllum  PDF   |  eFloras.org Link Font:+ Big | - Small
   134. Agrostophyllum  Blume Bijdr. 368. 1825.
禾叶兰属   he ye lan shu
  
Authors:Authors: Xinqi Chen & Jeffrey J. Wood

Chitonochilus Schlechter; Diploconchium Schauer.

  

Herbs, epiphytic. Stems clustered, without pseudobulbs, erect or pendulous, slender, bilaterally flattened, with many internodes, leafy. Leaves distichous, usually twisted at base to lie in one plane, usually narrowly oblong to linear-lanceolate, narrow, rather thin, with black- or brown-edged imbricate sheaths, base sheathing and articulate. Inflorescence terminal, usually globose heads on an elongate axis, or in a panicle, surrounded by bracts, often densely many flowered, rarely reduced to a few flowers or a solitary flower. Flowers resupinate, white or yellow, occasionally reddish, small, often self-pollinating. Sepals and petals free. Lateral sepals forming a mentum containing saccate lip base. Petals narrower than sepals; lip entire or 3-lobed, saccate base divided from blade by a transverse partition, forming hypochile and epichile; hypochile saccate at base, often with callus inside. Column short or rather long, foot rudimentary; anther incumbent; pollinia 8, waxy, usually with short caudicle, commonly attached to a solitary viscidium; stigma suborbicular, concave, large; rostellum conspicuous, subtriangular.

Between 40 and 50 species: Old World tropics from the Seychelles and tropical Asia east to the Pacific islands, with the center of distribution in New Guinea; two species in China.

  
1Leaves 4-8 mm wide; flowers ± tinged with purplish red; petals broadly subrhombic-elliptic.1  A. callosum    禾叶兰
+Leaves 1.5-2.5 mm wide; flowers white, later turning yellow; petals linear.2  A. inocephalum    台湾禾叶兰
   
   Lower Taxon
  • Agrostophyllum callosum  H. G. Reichenbach in Seemann  禾叶兰
  • Agrostophyllum inocephalum  (Schauer) Ames  台湾禾叶兰