13. Hetaeria Blume, Bijdr. 409. 1825.
翻唇兰属 fan chun lan shu
Authors: Xinqi Chen, Stephan W. Gale, Phillip J. Cribb & Paul Ormerod
Cerochilus Lindley; Goodyera sect. Rhamphidia Lindley; Rhamphidia (Lindley) Lindley.
Herbs, terrestrial. Rhizome ascending, elongate, several noded, fleshy; roots arising from rhizome nodes, elongate, fleshy, pubescent. Stem glabrous, leafy. Leaves subrosulate or scattered along stem, narrowly ovate to elliptic, usually asymmetric, membranous to slightly fleshy, with a petiole-like base dilating into tubular amplexicaul sheath. Inflorescence pubescent, with a few scattered sheathing sterile bracts and several to many flowers in a terminal raceme. Flowers not resupinate; ovary not (or rarely slightly) twisted, glabrous or pubescent. Sepals free, similar, outer surface glabrous or pubescent; lateral sepals embracing base of lip. Petals connivent with dorsal sepal and forming inverted hood, usually narrower than sepals, membranous; lip adnate to margin of column, 2-partite or with a short mesochile and 3-partite; hypochile concave, saccate or cupular, containing 1 to several papillose, warty or lamellate calli on either side of midvein; mesochile (when present) with involute margin; epichile entire and tapering or 2-lobed. Column short, with thin to fleshy winglike appendages at apical margin; anther ovoid, 2-locular; pollinia 4, in 2 pairs, clavate, granular-farinaceous, basally attenuate into short caudicles, attached to solitary ovate viscidium; rostellum erect, relatively long, bifid; stigma lobes separate and placed at apical corners of column. Capsule erect, fusiform.
About 30 species: tropical Africa and Asia, extending to New Guinea, NE Australia, and the Pacific islands; six species in China.
Records of Hetaeria cristata Blume from Taiwan and Hong Kong are based on misidentifications of Rhomboda tokioi and R. abbreviata, respectively (see p. 68).