Halvor B. Gjaerum

Norvegian mycologist, botanist (1919-2015).

Abbreviations: Gjaerum
Occupations: mycologist, botanist
Dates: 1919-10-10T00:00:00Z – 2015-12-30T00:00:00Z
Direct attributions: 0 plants, 125 fungi
Authorship mentions: 0 plants, 127 fungi
Links:IPNIVIAF

125 fungi attributed, 2 fungi contributed to127 fungi:

Taphrina alni (Alder Tongue Gall) (Berk. & Broome) Gjaerum 1966
fungi species in the taphrinaceae family
Taphrina alni is a fungal plant pathogen that causes alder tongue gall, a chemically induced distortion of female alder catkins (Alnus glutinosa). Taphrina alni produces a distinctive tongue-like growth which derives mainly from the ovarian tissues of the alder catkin or from the bracteoles. These alder pseudocones may carry several tongue galls, each of which usually appear to come from the same position; those curling down usually come from the bracteoles tissues and those projecting upwards usually come from ovarian tissues.
Joerstadia Gjaerum & Cummins 1982
fungi genus in the phragmidiaceae family
Joerstadia is a genus of rust fungi in the family Phragmidiaceae. The genus contains four species known from Africa, including Madagascar, which grow on Alchemilla plants.
Uromyces tylosemae Gjaerum 1990
fungi species in the pucciniaceae family
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Uromyces senecionisgigantis Gjaerum 1977
fungi species in the pucciniaceae family
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Uromyces semnanensis Gjaerum 1991
fungi species in the pucciniaceae family
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Uromyces sasaensis Gjaerum 1986
fungi species in the pucciniaceae family
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Uromyces pentaschistidis Gjaerum 1988
fungi species in the pucciniaceae family
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Uromyces leonotidis Bagyan., Gjaerum & M. Raju 2003
fungi species in the pucciniaceae family
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Uromyces hyparrheniicola Gjaerum 1988
fungi species in the pucciniaceae family
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Uromyces hyparrheniae Gjaerum 1983
fungi species in the pucciniaceae family
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Uromyces habrochloae Gjaerum 1988
fungi species in the pucciniaceae family
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Uromyces eulophiae Gjaerum 1984
fungi species in the pucciniaceae family
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Uromyces eragrostidicola Gjaerum 1988
fungi species in the pucciniaceae family
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Uromyces dipcadi Gjaerum 1984
fungi species in the pucciniaceae family
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Uromyces cypericola Gjaerum 1990
fungi species in the pucciniaceae family
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Uromyces clignyioides Gjaerum 1988
fungi species in the pucciniaceae family
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Uromyces chaetobromi Gjaerum 1988
fungi species in the pucciniaceae family
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Uromyces astragalipseudoutrigeris Gjaerum 1991
fungi species in the pucciniaceae family
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Uromyces astragaliatropilosuli Gjaerum 1991
fungi species in the pucciniaceae family
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Uromyces astragalialopecuri Gjaerum 1991
fungi species in the pucciniaceae family
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Uromyces alliisibirici Gjaerum 1970
fungi species in the pucciniaceae family
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Tranzschelia iranica M. Abbasi & Gjaerum 1997
fungi species in the tranzscheliaceae family
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Tranzschelia hyrcanica M. Abbasi & Gjaerum 1997
fungi species in the tranzscheliaceae family
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Trachyspora keniensis Gjaerum & Cummins 1982
fungi species in the phragmidiaceae family
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Phragmidium sarcopoterii Gjaerum & Bahç. 2004
fungi species in the phragmidiaceae family
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Maravalia africana Gjaerum 1978
fungi species in the chaconiaceae family
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Joerstadia patouillardii (Sacc. & Trotter) Gjaerum & Cummins 1982
fungi species in the phragmidiaceae family
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Joerstadia keniensis Gjaerum & Cummins 1982
fungi species in the phragmidiaceae family
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Joerstadia aliena (Syd. & P. Syd.) Gjaerum & Cummins 1982
fungi species in the phragmidiaceae family
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Joerstadia alchemillae (Bacc.) Gjaerum & Cummins 1982
fungi species in the phragmidiaceae family
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