Kärnefelt, I/ Mattsson, J-E/ Thell, A 1992: Evolution and phylogeny of cetrarioid lichens. - Plant Systematics and Evolution183: 113-160. [RLL List # 151 / Rec.# 9607] Keywords: ASCUS/ CETRARIA/ CLADISTICS/ CONIDIOMATA/ PARMELIACEAE
Abstract: 86 fig. 1 tab. [In depth study, including cladistic analyses, of the characters used to classify the various cetrarioid groups. "After a detailed investigation of characters in the apothecia, conidiomata, anatomical structures, as well as morphology and secondary chemistry, it is clear that several more or less distinctive, phylogenetic lines exist among taxa which earlier were accomodated in Cetraria".]