Esslinger, TL/ Bratt, C 1998: The Heterodermia erinacea group in North America, and a remarkable new disjunct distribution. - In: Glenn, MG/Harris, RC/Dirig, R/Cole, MS (eds.): Lichenographia Thomsoniana: North American Lichenology in Honor of John W. Thomson. . Mycotaxon Ltd., Ithaca, New York pp. 25-36. [RLL List # 171 / Rec.# 5194] Keywords: CALIFORNIA/ HETERODERMIA/ MEXICO/ SOUTH AFRICA
Abstract: 6 fig. [Heterodermia namaquana, described originally from South Africa, is reported from California and northwest Mexico. New: H. ciliatomarginata (Linder) Essl. comb. nov.]