Weber, WA 1975: Two new species of Lecanora, Section Petrasterion, with a key to the North American species. - The Bryologist78: 206-210. [RLL List # 93-128 / Rec.# 20034] Keywords: LECANORA/ KEY/ NEW TAXA/ NORTH AMERICA
Abstract: 2 fig. [New Lecanora christoi sp. nov., L. mellea sp. nov.]