Proposal for a Standardized Nomenclature and Characterization Of Insoluble Lichen Pigments

Abstract

A method for the characterization of insoluble lichen pigments is presented. The method relies on pH–dependent colour reactions before and after pretreatment with HNO3. Diagnostic reactions for 22 different pigments and a key for their identification are given. A standardized nomenclature and a procedure similar to the typification of species in systematic botany is proposed in order to avoid ambiguous naming.

A molecular phylogeny of the Lecanora varia group, including a new species from western North America

“…The small and large means are based on ≥10 measurements on individual specimens. Nomenclature of non-soluble pigments follows Meyer and Printzen (2000). Thin layer chromatography was carried out according to Culberson (1972) and Culberson and Johnson (1982), and high performance liquid chromatography according to Elix et al (2003).…”

The Bacidia coprodes group (Ramalinaceae, Lecanoromycetes, Ascomycota), with special reference to the species in Europe and North America

“…In addition, an orange-brown (K+ intensifying, N-) pigment is (at least sometimes) present in the hypothecium of B. notarisiana and B. granosa. These three pigments correspond, respectively, to Bagliettoana-green and Laurocerasi-brown of Meyer & Printzen (2000), and Rubella-orange of Ekman (1996). The latter was included in Arceutina-yellow by Meyer & Printzen (2000).…”

Seven Species of Freshwater Lichen-Forming Fungi Newly Recorded from Poland

“…The lichen material was analyzed by standard morphological and anatomical methods using Nikon SMZ 800N and Nikon Eclipse E200 microscopes. The pigments Atra-brown (sensu Meyer & Printzen 2000) and Macrocarpa-green (sensu Fryday 2002) were identified. Lichen substances were studied by thin-layer chromatography (TLC) using the methods described by Orange et al (2001).…”