- 130 specimens collected from at least 5 countries
- 728 specimens identified from at least 3 countries
- 275 specimens used in 9 works
Progress
Collected From
- United States 107
- Switzerland 14
- France 3
- Norway 1
- Georgia 1
Identified From
- United States 32
- Switzerland 2
- France 1
Dates Collected
- 1800 – 1805 2
- 1835 – 1840 1
- 1840 – 1845 6
- 1845 – 1850 4
- 1850 – 1855 2
- 1855 – 1860 1
- 1870 – 1875 1
- 1895 – 1900 1