爬兰属 pa lan shu

Authors: Xinqi Chen, Stephan W. Gale & Phillip J. Cribb

Herbs, terrestrial. Rhizome elongate, creeping, cylindric, several noded; roots filiform, emerging singly from rhizome nodes. Stem erect or suberect, leafy. Leaves elliptic to ovate-lanceolate, papery; petiole-like leaf base dilating into a tubular, membranous sheath, often imbricate on stem. Inflorescence terminal, shortly racemose, with many small flowers, pubescent; floral bracts large, longer than ovary, pubescent. Flowers resupinate; ovary twisted, cylindric, pubescent. Sepals similar, abaxially hairy; dorsal sepal and petals forming a hood; lateral sepals free. Petals obliquely rhombic; lip shorter than sepals, adnate to margin of column, pandurate, recurved, long spurred at base; disk with 1 central longitudinal lamella and 2 lamellate calli (1 on either side of central lamella); spur cylindric, protruding between base of lateral sepals, nearly as long as ovary, apex slightly 2-lobed, internally with a few, irregular, small warts near apex. Column short, lacking appendages; anther 2-locular; pollinia 2, granular-farinaceous, sectile, attached to a narrow, elongate viscidium; rostellum short, erect, 2-lobed; stigma subcircular, below rostellum.

One species: China, NE India, Indonesia, Myanmar, Nepal, Thailand, Vietnam.

Lower Taxon

• Herpysma longicaulis Lindley