E. A. Davydov 2007: Approaches to a classification of the family Umbilicariaceae (lichenised Ascomycota) by anatomical and morphological characters. - Turczaninowia10(3-4): 51-57. [RLL List # 215 / Rec.# 30669] Keywords: UMBILICARIA/ UMBILICARIACEAE/ SYSTEMATICS/ MORPHOLOGY/ CLASSIFICATION/ REVIEW
Abstract: [Historical review of classifications for the Umbilicariaceae. "However, new data on molecular phylogeny ... suggest modifying the system, because obtained monophyletic groups are not in congruence with any of the traditional classifications." In English with a Russian summary.]