- 2,571 specimens collected from at least 9 countries
- 339 specimens identified from at least 2 countries
- 604 specimens used in 137 works
Progress
Collected From
- United States 2,537
- Canada 6
- Mexico 2
- Australia 2
- Ecuador 1
- Switzerland 1
- Puerto Rico 1
- Italy 1
- Hong Kong 1
Identified From
- United States 308
- Canada 31
Dates Collected
- 1815 – 1820 1
- 1835 – 1840 1
- 1840 – 1845 3
- 1850 – 1855 35
- 1855 – 1860 978
- 1860 – 1865 62
- 1865 – 1870 181
- 1870 – 1875 158
- 1875 – 1880 249
- 1880 – 1885 73
- 1885 – 1890 76
- 1890 – 1895 202
- 1905 – 1910 5
- 1915 – 1920 1
- 1925 – 1930 21
- 1935 – 1940 1
- 1940 – 1945 1
- 1955 – 1960 5
- 1960 – 1965 1
- 1965 – 1970 1
- 1980 – 1985 2
- 2005 – 2010 1
Dates Identified
- 1835 – 1840 1
- 1850 – 1855 1
- 1855 – 1860 271
- 1860 – 1865 2
- 1870 – 1875 1
- 1895 – 1900 2