Ivar Jørstad
Jørst.; Ivar Nilsen Jørstad
* July 14, 1887 – June 08, 1967 †
botanist, mycologist
Norwegian botanist (1887-1967)
- 27,018 specimens collected from at least 9 countries
- 35,345 specimens identified from at least 18 countries
- 1,475 specimens used in 97 works
Progress
Collected From
Identified From
- Norway 35,106
- Spain 67
- Sweden 51
- Iceland 39
- Denmark 31
- Svalbard and Jan Mayen 9
- Estonia 9
- Netherlands 7
- Finland 7
- Australia 5
- Russian Federation 3
- Iran, Islamic Republic of 3
- Saint Helena, Ascension and Tristan da Cunha 2
- United Kingdom 1
- Greenland 1
- Hungary 1
- Pakistan 1
- Algeria 1
Dates Collected
- 1830 – 1835 2
- 1845 – 1850 1
- 1870 – 1875 1
- 1875 – 1880 1
- 1885 – 1890 1
- 1895 – 1900 2
- 1900 – 1905 13
- 1905 – 1910 808
- 1910 – 1915 2,567
- 1915 – 1920 2,358
- 1920 – 1925 2,633
- 1925 – 1930 3,328
- 1930 – 1935 3,523
- 1935 – 1940 2,040
- 1940 – 1945 1,088
- 1945 – 1950 2,415
- 1950 – 1955 2,275
- 1955 – 1960 1,297
- 1960 – 1965 2,082
- 1965 – 1970 538
- 1970 – 1975 2
- 1980 – 1985 2
- 1985 – 1990 1
Dates Identified
- 1830 – 1835 1
- 1845 – 1850 1
- 1880 – 1885 1
- 1885 – 1890 10
- 1890 – 1895 1
- 1895 – 1900 2
- 1900 – 1905 11
- 1905 – 1910 651
- 1910 – 1915 1,941
- 1915 – 1920 2,010
- 1920 – 1925 2,457
- 1925 – 1930 2,725
- 1930 – 1935 2,945
- 1935 – 1940 1,829
- 1940 – 1945 949
- 1945 – 1950 2,265
- 1950 – 1955 2,166
- 1955 – 1960 1,211
- 1960 – 1965 1,967
- 1965 – 1970 516
- 1970 – 1975 1
- 1975 – 1980 5
- 1980 – 1985 2
- 1985 – 1990 1
- 1990 – 1995 4