- 13,370 specimens collected from at least 16 countries
- 24 specimens identified from at least 2 countries
- 4,169 specimens used in 186 works
Progress
Collected From
- United States 10,874
- Mexico 1,705
- Canada 638
- American Samoa 23
- Egypt 20
- France 19
- Switzerland 15
- Lebanon 9
- Australia 8
- Samoa 3
- Algeria 2
- Paraguay 1
- French Polynesia 1
- Spain 1
- Israel 1
- Guatemala 1
Identified From
- United States 22
- Mexico 1
Dates Collected
- 1815 – 1820 2
- 1865 – 1870 2
- 1870 – 1875 1
- 1885 – 1890 1
- 1890 – 1895 3
- 1900 – 1905 3
- 1905 – 1910 525
- 1910 – 1915 1,617
- 1915 – 1920 93
- 1920 – 1925 66
- 1925 – 1930 659
- 1930 – 1935 2,372
- 1935 – 1940 441
- 1940 – 1945 2,935
- 1945 – 1950 3,100
- 1950 – 1955 846
- 1955 – 1960 23
- 1960 – 1965 6
- 1965 – 1970 2
- 1970 – 1975 3
- 1980 – 1985 1
- 1985 – 1990 4
- 1990 – 1995 10
- 2015 – 2020 2