Plantarum Cryptogamicarum Norvegicarum, Quas Collegit Ediditique S. Chr. Sommerfelt
Abbreviation: Sommerfelt, Pl. Crypt. Norveg.
Editor(s): S.C. Sommerfelt
Range: 1 - 200
Notes: Centuries I - III. For detailed information see Eckblad & Sunding (1987).