Hafellner, J 1988: Principles of classification and main taxonomic groups. - In: M. Galun (ed.): CRC Handbook of Lichenology. Volume III. . CRC Press, Boca Raton, Florida pp. 41-52. [RLL List # 136 / Rec.# 7258] Keywords: TAXONOMY/ SYSTEMATICS/ REVIEW
Abstract: 4 figures. [General review of taxonomic concepts for higher levels of classification in the lichen-forming fungi with special emphasis on ascal types. Author includes brief decriptive notes on fungal orders with lichenized forms.]