Sommerfelt: Pl. Crypt. Norveg.
Søren Christian Sommerfelt [1-200]

Duke University Herbarium Lichen Collection
Catalog #: 148506
bfd47902-fa34-11e2-a92b-005056000560
Blytt? #s.n. (hav3640)
Lecanora albescens (Hoffm.) Branth & Rostrup
Norway, unspecified

Uppsala University Exsiccati
Catalog #: L-091033
Chr. Sommerfelt #147
Lecanora sommerfeltiana
Norway, Nordland