Pišút I.
(1968):
Lichenologische Bemerkungen 3,
Annotationes Zoologicae et Botanicae, Bratislava,
50: 1–9
Collemataceae, taxonomy, nomenclature, chorology; Collema polycarpon subsp. corcyrense, comb. nov., Collema nigrescens subsp. subnigrescens comb. nov.
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