New names in Gunnerus's <i>Flora</i> <i>Norvegica</i> , and their typificationJørgensen, Per M.; Jørgensen, Per M. · TAXON · 2012

Botanical Latin, quo vadis?Per M. Jørgensen · Taxon · 1998

Notes on African Pannariaceae (lichenized ascomycetes)Per M. Jørgensen · 2003

Beiträge zur LichenologiePer M. Jørgensen · 1985

Nordic Journal of BotanyPer M. Jørgensen · 1995

Two Nomenclatural Systems?Per M. Jørgensen · Taxon · 2002

The Nomenclature of PenicilliumPer M. Jørgensen and Erik Gunnerbeck · Taxon · 1977

On the Nomenclature of Lichen PhototypesPer M. Jørgensen · Taxon · 1996

Evolution and Measurement of Species DiversityR. H. Whittaker · Taxon · 1972

Further Disintegration of ScrophulariaceaeBengt Oxelman, Per Kornhall, Richard G. Olmstead and Birgitta Bremer · Taxon · 2005

Remarks on Algal Nomenclature. IVPaul C. Silva · Taxon · 1970

Remarks on Algal NomenclaturePaul C. Silva · Taxon · 1957

Remarks on Algal Nomenclature IIPaul C. Silva · Taxon · 1959

Remarks on Algal Nomenclature VIPaul C. Silva · Taxon · 1980

Report of the Committee for Algae: 2Paul C. Silva · Taxon · 1994

Nomenclature of Endosymbiotic DinoflagellatesRudolf J. Blank and Robert K. Trench · Taxon · 1986