Nomenclatural notes on Pseudocyphellaria V: Some Brazilian taxa*

A new, phyllidiate, white-medulla species with yellow pseudocyphellae and a green photobiont, Pseudocyphellaria kalbii D.J.Galloway, is described from Brazilian collections, and typification and notes on P. aurora (De Not.) Vainio are presented. According to the literature the lichen genus Pseudocyphellaria is represented in Brazil by three taxa; P. aurata, P. aurora and P. clathrata (De Notaris 1851, Vainio 1890, Zahlbruckner 1902, 1908, 1909, Malme 1934, Xavier Filho & Mariz 1970, Osorio 1977a, 1977b, 1985, 1992, Osorio & Homrich 1978, Osorio & Fleig 1982, 1986a, 1986b, 1987, 1988, 1989, 1990a, 1990b, Marcelli 1991. P. aurata and P. clathrata both have a green photobiont, yellow pseudocyphellae and a yellow medulla and form a species pair (Galloway & Arvidsson 1990) while P. aurora has a green photobiont, white medulla and white pseudocyphellae (Zahlbruckner 1902, Malme 1934). It is typified here from authentic material. ————————— * Part IV in Lichenologist 21: 88-89 (1989). While researching palaeotropical and South American species of Pseudocyphellaria, I examined, inter alia some Brazilian collections sent to me for identification by Dr K. Kalb (Neumarkt). Kalb’s Brazilian collections contained a new species with a white medulla, green photobiont, yellow pseudocyphellae and prominent marginal phyllidia, which is described below as P. kalbii. 1. Pseudocyphellaria aurora (De Not.) Vainio, Acta Soc. Flora Fauna fenn. 7: 184 (1890). Sticta aurora De Not., Osserv. Sticta: 9, Tab.1, fig. 3. (1851). Crocodia aurora (De Not.) Trevisan, Lichenotheca Veneta exs. no. 75 (1869). Sticta aurata var. aurora (De Not.) Mü ll. Arg., Flora 63: 264 (1880). Type: Casaretto s.n., Brasil, “Serra dos Organos” 1839 (BM lectotype designated here, PC-LENORMAND, VER, W -