Kärnefelt, I/ Emanuelsson, K/ Thell, A 1998: Anatomy and systematics of usneoid genera in the Parmeliaceae. - Nova Hedwigia67(1-2): 71-92. [RLL List # 172 / Rec.# 9606] Keywords: APOTHECIAL DEVELOPMENT/ ASCOCARP ONTOGENY/ ASCOCARP STRUCTURE/ ASCUS STRUCTURE/ CONIDIA/ CORTICAL STRUCTURE/ FAMILY CONCEPTS/ PARMELIACEAE/ TAXONOMIC CONCEPTS/ USNEACEAE
Abstract: 6 fig. 1 tab. [Study of apothecial structure and development, asci, conidia, and cortex in eleven genera that have been placed together in a family Usneaceae. "In this respect the examined material does not deviate from other genera included in the Parmeliaceae, and a separate family Usneaceae is not supported."]