Caloplaca badioreagens, a new calcicolous, endolithic lichen from Italy

Caloplaca badioreagens is a new endolithic species of subgenus Pyrenodesmia characterized by a greyish brown, K+ reddish brown epithecium, and simple, non-capitate paraphyses. It is readily distinguishable from other endolithic Pyrenodesmias (C. agardhiana, C. alociza, C. erodens) by the presence of an unknown lichen substance in the excipulum and the subhymenium, forming large, rectangular crystal plates in GAW and GE. The new species was collected on hard limestone in three localities of central and southern Italy.

Cetraria Obtusata Comb. Et Stat. Nov., An Overlooked Lichen Species From the Central Alps

A description is given for Cetraria obtusata (Schaerer) v. d. Boom & Sipman, comb, et stat. nov., known so far only from the central Alps, and characterized by a pale yellow, C+ yellowish orange medulla and raised pseudocyphellae often surrounded by projections. It contains the rare lichen substance secalonic acid C and two unidentified substances.