D. L.  Jones, ?Contributions to Tasmanian orchidology: 1. Introduction and the genera Acianthus, Arthrochilus, xCalassodia, Calochilus, Corybas, Cyrtostylis, Dipodium, Dockrillia, Gastrodia, Leptoceras, Microtis, Pyrorchis and Townsonia.?, Austral. Orchid Res., vol. no. 3, pp. 1 - 15 (1998) - illus., 1998.

H.  Kurzweil, ?Floral ontogeny of orchids: a review.?, Beitr. Biol. Pfl., vol. 71, pp. 45 - 100, 1998.