Culberson, WL 1973: The Parmelia perforata group: niche characteristics of chemical races, speciation by parallel evolution, and a new taxonomy. - The Bryologist76: 20-29. [RLL List # 85 / Rec.# 3858] Keywords: PARMELIA/ SPECIES PAIRS/ PARALLEL EVOLUTION/ PARMOTREMA/ KEY/ NEW TAXA
Abstract: 5 fig. 1 tab. [7 species. New: Parmelia preperforata sp. nov., P. parahypotropa sp. nov.]
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