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Genus Rhinerrhiza Family Orchidaceae

Description: Epiphytic herbs, monopodial; roots creeping over the surface of the substrate, fibrous to somewhat fleshy.

Leaves scattered along the stem, 2 or more per shoot, distichous, conduplicate.

Inflorescence racemose, many-flowered, lateral; flowers resupinate. Sepals free, similar. Lateral petals free, similar to sepals. Labellum free, hinged to tip of column foot; lamina 3-lobed, shallowly saccate, bearing 1 central callus and 2 lateral calli; midlobe forming a short, hollow spur. Column lacking free filament and style; column wings apparently absent. Column foot about as long as column. Anther incumbent, cap-like. Pollinia 4, waxy. Stigma entire. Rostellum not prominent, ventral.


Distribution and occurrence: World: 2 species, Australia, New Guinea, Solomon Is. Australia: 2 species (1 species endemic), Qld, N.S.W.

Text by P. H. Weston
Taxon concept:

One species in NSW: Rhinerrhiza divitiflora

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