In the herbarium, Royal Botanic Gardens Kew there file as Dothidea filicina (Fr.)Fckl., a collection N.Z. Colenso, ex Herb Berkeley. The host although unlabelled is typical of Dicksonia rosa. Berkeley (1855) records Dothidea filicina Mont. mss; -a~, 2~n the underside of fern leaves, Colenso. He noted Dr Montagne's mens are from Otaheite (Tahiti) on some species of Adiantum and forms occur in Ceylon of which a description will shortly appear in the Journal of Botany. In that the asci are short, obovate, and the obovate, uniseptate 1/2000 of an inch long. 1 have seen no fruit in New Zealand specimens but they have the same brittle stroma and rhytismoid aspect. Berkeley (1854) described Dothidea filicina Mont. mss var. nervisequia from Ceylon (G. H. K. Thwaites). He noted that this species differed in appearance from D.,pteridis Fr. (syn. Cryptomycina pteridis (Fr.) Hohnel) and was merely a form of Dr Montagne's species on Adiantum from Tahiti. He also noted that the same species occurred in New Zealand. Among species disposed by Muller and Arx under Rhagadolobium is R. nervisequium (Berk.) v. Arx based on the Ceylon material. Montagne does not appear to have published the species Dothidea filicina. Dothidea filicina Fr. refers to a different species. In the Dothidea filicina folder at Kew there are both the Ceylon collection and the collection from New Zealand. The New Zealand species on Dicksonia appears to be distinct from the Ceylon material in that loculi are larger and ascospores are smaller. Both species are characteristic of Lauterbachiella.