The Genus Lecanorchis (Orchidaceae) in Aichi Prefecture, Central Honshu

Abstract

Five species and two forms of the genus Lecanorchis were found in Aichi prefecture. L. japonica and L. hokurikuensis (sometimes treated as a vaeiety of the former), and L. kiusiana var. kiusiana and var. suginoana, were morphologically discontinuous from one another in the sympatric habitat (s). They should be separated at the rank of species, respectively. L. kiiensis was considered to be a yellow-flowered form of L. hokurikuensis. A similar yellow-flowered form was also found in L. kiusiana var. suginoana. Consequently, two new names (L. hokurikuensis form, kiiensis and L. suginoana) were proposed, and a new form (L. suginoana form, flava) was described.