- 1,379 specimens collected from at least 3 countries
- 1 specimen identified from at least 1 country
- 196 specimens used in 51 works
Progress
Collected From
- United States 1,077
- Venezuela 293
- Bolivia 1
Identified From
Dates Collected
- 1925 – 1930 50
- 1930 – 1935 439
- 1935 – 1940 547
- 1940 – 1945 1
- 1945 – 1950 1
- 1950 – 1955 1
- 1955 – 1960 1
- 1960 – 1965 6
- 1965 – 1970 216
- 1970 – 1975 60
- 1975 – 1980 1
- 1980 – 1985 4
- 1985 – 1990 2
- 2005 – 2010 2
- 2010 – 2015 1