Follmann & Werner, Lich. Exs. Sel. Colon. [Köln (Cologne)]
Follmann, G. & Werner, B.C. [421-600]
IndExs #1632971775

Academy of Natural Sciences of Drexel University - Lichens
Catalog #: PH00793718
A. Crespo #s.n. 00 November 1974
Pertusaria albescens (Hudson) Choisy & Werner
Spain, Madrid, in a small glen east of Montejo de la Sierra („Hayedo de Montejo“), Cordillera Central, Castilla la Vieja, Provincia de Madrid, southern foothills of the Montes Carpetanos