Henning Eiler Petersen

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.