Poelt, J/ Leuckert, C 1993: Substitution and supplementary addition of secondary products in the evolution of lichenized Ascomycotina. - In: Feige, GB/Lumbsch, HT (eds.): Phytochemistry and Chemotaxonomy of Lichenized Ascomycetes - A Festschrift in Honour of Siegfried Huneck. . Bibliotheca Lichenologica, J. Cramer, Berlin, Stuttgart pp. 201-215. [RLL List # 154 / Rec.# 14748] Keywords: CHEMOTAXONOMY/ CHEMOTYPES/ CORTICAL CHEMISTRY/ CORTICAL PIGMENTS/ EVOLUTION
Abstract: [Discussion of the taxonomic significance of substitutions and additions to the various secondary substances, especially in the cortex, and including crystalline and amorphous pigments.]