Krog, H/ Swinscow, TDV 1979: Parmelia subgenus Hypotrachyna in East Africa. - Norwegian Journal of Botany26: 11-43. [RLL List # 104-58 / Rec.# 10487] Keywords: EAST AFRICA/ HYPOTRACHYNA/ PARMELIA/ PARMELIACEAE/ NEW TAXA/ KEY
Abstract: 18 figures. 2 tables. [Recognition of 34 species; key. New: Parmelia subgen. Hypotrachyna (Vain.) stat. nov., subgen. Cyclocheila (Vain.) stat. nov., Parmelia afrorevoluta sp. nov., P. polydactyla sp. nov. "Parmelia costaricensis Nyl. is considered synonymous with P. hypotrachyna Nyl., Parmelia subplumbeata Dodge with P. ducalis Jatta, and Parmelia dissecta Nyl. with P. horrescens Tayl. Parmelia dissecta auct. non Nyl. is P. minarum Nyl. Parmelia meyeri Zahlbr. is regarded as a species distinct from P. sinuosa (Sm.) Ach."]