foc
《中国植物志》英文修订版
Flora of China
  FOC Vol.25 (2009)              | Family List  Orchidaceae  PDF Orchidaceae  PDF   |  eFloras.org Link Font:+ Big | - Small
   3. Orchidaceae subfam. Orchidoideae  ORCHIDOIDEAE
兰亚科   lan ya ke
  
Authors:Authors: Xinqi Chen, Kai-yung Lang, Stephan W. Gale, Phillip J. Cribb & Paul Ormerod

  

Terrestrial or very rarely epiphytic plants with root-stem tubers or fleshy, short to long rhizomes, rarely mycotrophic with leaves reduced to colorless sheaths. Tubers, if present, ovoid, spherical, ellipsoidal, digitate, or cylindric-fusiform, solitary or in clusters, hairy or glabrous; rhizome, if present, fleshy, elongate. Leaves spirally arranged, 1 to many, basal or arranged along stem, deciduous or rarely persistent for more than a year, often sheathing at base, usually green, rarely spotted or veined with silver, red, or gold, rarely purple spotted or shaded beneath. Inflorescence terminal, erect or arching, 1- to many flowered; peduncle usually terete, glabrous, hairy, or glandular; bracts linear, lanceolate, ovate, or elliptic, usually glabrous and green. Flowers small to large, usually resupinate, flat to tubular, often showy; pedicel often obscure; ovary distinct, glabrous or less frequently hairy or glandular, lacking an abscission layer. Dorsal sepal free or often adnate to petals to form a hood over column; lateral sepals usually free, sometimes connate and oblique at base to form a spurlike mentum. Petals entire or 2-lobed, often adnate to dorsal sepal; lip usually lowermost in flower, usually deflexed, entire, 3- or 5-lobed, or 2-partite, occasionally callose or with 2 basal glands, often saccate at base or with spurlike nectary; nectary fusiform, clavate, or cylindric, rarely fused to ovary, often lacking nectar. Column basifixed or not; anther 2-locular, longer than or as long as rostellum, locules adnate, divergent, or separated on a ± broad connective; pollinia 2 or 4, sectile, attached by short to elongate caudicles to 1 or 2 viscidia; staminodes 2, lateral, usually present, sessile or stalked; stigma entire or 2-lobed, sessile or stalked, concave to convex; rostellum usually 2- or 3-lobed, shorter than or as long as anther, sometimes obscure, when 3-lobed mid-lobe erect or porrect, lying between or in front of anther locules, side lobes short to long, porrect, rarely incurved or upcurved. Capsule 3-ribbed, longitudinally dehiscent. Seeds fusiform to almost cylindric, with a thin testa.

About 192 genera and ca. 3,630 species in eight tribes and 20 subtribes: well represented in N temperate and tropical areas of both the Old and New Worlds; 46 genera (four endemic, one introduced) and 344 species (153 endemic, one introduced) in China.

This subfamily is particularly well represented in temperate parts of China.

This subfamily is particularly well represented in temperate parts of China.