Krog, H 1990: New Ramalina species from Porto Santo, Madeira. - Lichenologist22(3): 241-247. [RLL List # 141 / Rec.# 10532] Keywords: MADEIRA/ RAMALINA/ NEW TAXA/ MACARONESIA
Abstract: 4 figures. [New: Ramalina erosa sp. nov., R. jamesii sp. nov., R. portosantana sp. nov., and R. timdaliana sp. nov. "All four species are saxicolous and occur at or below c. 500m alt. They are believed to belong in the Macaronesian endemic element."]