Rolf Santesson

On the Identity of Pyrenotrichum ‘ atrocyaneum’, P. ‘ mirum’, and P. ‘ podosphaera’, Campylidia of Lichenized Ascomycota (Lecanorales: Ectolechiaceae)

Abstract We revised the original material of the invalidly published names Pyrenotrichum ‘atrocyaneum’, P. ‘mirum’, and P. ‘podosphaera’ R. Sant. Pyrenotrichum ‘atrocyaneum’ represents the campylidia of the recently described Kantvilasia hians, while P. ‘mirum’ corresponds to the campylidia of ‘Lopadium’ tayabasense, a species that externally resembles Calopadia, but differs in the ellipsoid, non-septate conidia and the richly branched and anastomosing paraphyses. The new genus Calopadiopsis is established to accomodate this taxon. Pyrenotrichum ‘podosphaera’ represents a genuine Sporopodium, externally resembling the pantropical, well known S. phyllocharis and S. xantholeucum, but featuring unique, 1-septate conidia. This taxon is here formally introduced as a new species, S. podosphaera. Diagnostic features of all lecanoralean taxa producing campylidia are summarized.

CHOREOSPORA GEN. NOV., A NEW LICHENICOLOUS HYPHOMYCETE FROM AUSTRALIA

Choreospora tibellii P. Const. & R. Sant. gen. & sp. nov., a sporodochial hyphomycete with non-septate, tetraradiate conidia is described from Australia. The fungus grows on a sterile foliicolous lichenized thallus (? Echinoplaca sp.) on leaves of Cordyline .