Catalogue no.:	L-006559
Taxon:	Petractis clausa
Label:	Petractis clausa
Family:	Lichenes
Collector:	G. Einar Du Rietz
Date:	1917 06 11
Country:	Sweden
Landskap:	Gotland
Socken:	Follingbo
Locality:	Jakobsberg i skogen
Habitat:	skuggig kalkklint