Bernhardi J.J.
(1799):
Lichenum gelatinosorum illustratio,
(Schraders) Journal für die Botanik,
1: 1-27
Collema; Leptogium; Polychidium; cyanolichens; two tables with 14 figures included. Polychidium muscicola (as Lichen muscicola) is one of few localized reports of a lichen from the present territory of the Czech Republic before 1800, the mention is at footnote at p. 23 as follows: "L. muscicola etiam a Dn. Nil Hoffman, Dano, Botanices studii cultore indefesso accepi, qui cum ad Thermas Carolinas in Bohemia invenit."
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