title: Lecanorchis tabugawaensis(Orchidaceae, Vanilloideae), a new mycoheterotrophic plant from Yakushima Island, Japan.
abstract: A new species,Lecanorchis tabugawaensisSuetsugu & Fukunaga,sp. nov.from Yakushima Island, Kagoshima Prefecture, Japan, is described and illustrated.Lecanorchis tabugawaensisis similar toLecanorchis taiwaniana, but it is easily distinguished by the straight column, the glabrous status of the base of the column, the almost entire and narrow labellum morphology, the shorter part of the column fused with the labellum and the glabrous status of the apical part of the adaxial labellum surface. The new species appears to be restricted to two locations, each consisting of only dozens of mature individuals, and is assessed as Critically Endangered [CR D1] according to IUCN Red List Categories and Criteria.
authors.affiliation: Department of Biology, Graduate School of Science, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe, 657-8501, Japan.
authors.forename: Kenji
authors.initials: K
authors.lastname: Suetsugu
authors.affiliation: Tokushima-cho 3-35, Tokushima City, Tokushima, Japan.
authors.forename: Hirokazu
authors.initials: H
authors.lastname: Fukunaga
keywords: IUCN conservation status; mycoheterotrophy; new species; reproductive biology; taxonomy