Tibell L.
(1991):
Revision of some taxa of Caliciales described by W. Nylander -
Annales Botanici Fennici,
28: 117–121
Specimens under fourteen names of Caliciales (Ascomycotina; mainly lichens) in the herbarium of William Nylander in Helsinki (H-NYL) were revised. Ten taxa described by Nylander are also lectotypifed, viz. Cali dum diploellum, C. pallescens f. betulinum, C. pallescens var. inter ruptum, C. parietinum subsp. subparietinum, C. quercinum var. reum, C. retinens, Pyrgillus cubanus, P. sodalis, Sphinctrina fuscescens and S. gomphilloides. Three new combinations are proposed: Phaeocali- cium betulinum …
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