Henning Eiler Petersen

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Henning Eiler Petersen (1877-1946) was a Danish mycologist, botanist and marine biologist. He made a major contribution to unveiling the mysterious die-back of eel grass in Northern European waters in the early 20th Century as a pathogen outbreak.

His main research was in what was then known as lower fungi - Chytridiomycota and Oomycetes. The Oomycete genus Petersenia is named to his honour.

• Petersen, H.E. (1903) Notes sur les Phycomycètes observés dans les téguments vides des nymphes de Phryganées avec description de trios espèces nouvelles de Chytridinées. Journal de Botanique 17 (6-7): 214-222.
• Petersen, H.E. (1905) Contributions à la connaissance des Phycomycètes marins (Chrytridinæ Fischer). Oversigt over det Kongelige Danske Videnskabernes Selskabs Forhandlinger 1905 (5): 439-488
• Petersen, H.E. (1910) An account of Danish freshwater Phycomycetes, with biological and systematical remarks. Annales Mycologici 8: 494-560.
• Ostenfeld, C.H. & Petersen, H.E. (1930) On a new Plasmodiophoracea found in Canada. Zeitschrift für Botanik 23: 13-18.
• Petersen, H.E. (1933) Wasting disease in eel grass (Zostera marina). Nature 134: 143-144.
• Petersen, H.E. (1935) Preliminary report on the disease of eel-grass (Zostera marina L.). Report from the Danish Biological Station 40: 3-8.

He also studied the systematics of Red algae:

• Petersen, H.E. (1908) Danske Arter af Slægten Ceramium (Roth) Lyngbye [with French summary]. Kongelige Danske Videnskabernes Selskabs Skrifter - Naturvidenskabelig og Mathematisk Afdeling, 7.Rk., vol. 5 (2).

On a side track, he investigated intraspecific morphological variation in plant species.

• Petersen, H.E. (1908) The structure and biology of Arctic flowering plants (ed. E. Warming. 1. Ericinæ (Ericaceae, Pirolaceae). 2. The biological anatomy of them leaves and stems. Meddelelser om Grønland 36: 73-138.
• Petersen, H.E. (1908) The structure and biology of Arctic flowering plants (ed. E. Warming. 2. Diapensiaceae. Diapensia lapponica. Meddelelser om Grønland 36: 139-154.
• Petersen, H. E. (1915) Indledende Studier over Polymorfien hos Anthriscus silvestris (L.) Hoffm. Dansk Botanisk Arkiv 1: 1-150.
• Petersen, H.E. (1924) Studier over Polymorphien hos Vaccinium uliginosum. Botanisk Tidsskrift 38 (3).
• Petersen, H.E. (1921) Nogle Studier over Pimpinella saxifraga L. Botanisk Tidsskrift 37: 222-240.
• Petersen, H.E. (1922) Études ultérieures sur la polymorphie de l'Anthriscus silvester (L.) Hoffm. Dansk Botanisk Arkiv 4: 1-28.
• Petersen, H.E. (1926) Über die Variation der Potentilla erecta (L.) Dalla Torre. Botanisk Tidsskrift 39: 368-374.

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