Genus Lecanorchis
Lecanorchis Blume, Mus. Bot. Lugd. Bat. 2 (1856) 188
Synonyms:
Leafless sympodial terrestrial plants, lacking chlorophyll, with short erect underground rhizomes. Inflorescence a raceme or a panicle, wiry, blackish. Flowers below the sepals and petals with a caliculus, a collar-like structure on top of the ovary which is persistent on the fruit, medium-sized, resupinate, brownish or violet outside, often whitish inside. Sepals free. Petals free, similar to the dorsal sepal. Lip without spur, not mobile, entire or 3-lobed, in the basal part adnate to the sides of the column, apex hairy. Column-foot absent. Pollinia 2, mealy; caudicles, stipe, and viscidium absent. Fruit slender, cylindrical, ribbed. Seed with two slender appendages.
Species present in New Guinea:
Lecanorchis bicarinata
Lecanorchis ciliolata
Lecanorchis javanica
Lecanorchis neglecta
Tropical East Asia, Japan, Malaysia, Indonesia, the Philippines, Papua New Guinea. About 20 species; in New Guinea c. 4 species.
Terrestrial in lowland forest.
- Hashimoto, T. 1990. Taxonomic review of the Japanese Lecanorchis. Ann. Tsukuba Bot. Gard. 9: 1-40.
- Howcroft, N.H.S. 1984. A guide to the Monocotyledons of Papua New Guinea. Part 4. The Orchidaceae (in part). Pp. 119-120, fig. 67. PNG University of Technology, Lae.
- Pridgeon, A. M., P.J. Cribb, M.W. Chase & F.N. Rasmussen (Eds.). 2003. Genera Orchidacearum, Volume 3: Orchidoideae (Part 2), Vanilloideae. Pp. 316-318, fig. 221.1. Oxford University Press, Oxford.
- Subfamily Vanilloideae
- Subtribe Lecanorchidinae
- Genus Lecanorchis
A very distinctive genus of leafless terrestrials with slender blackish stems. The collar-like structure at the base of the flower is a unique character among the leafless orchids. The taxonomy of the tropical Asian and New Guinea species is very confused, a situation that will be difficult to remedy due to the sparsity of available material in herbaria and the often poor state of preservation of the specimens.
Species included in this database:
Lecanorchis bicarinata
Lecanorchis ciliolata
Lecanorchis javanica
Lecanorchis neglecta
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Genus Lecanorchis
Lecanorchis ciliolata J.J.Sm., floral analysis, drawing J.J. Smith, based on Lam 1303
Genus Lecanorchis
Lecanorchis, drawing N.H.S. Howcroft 72, from PNG, Woitape