- 2,275 specimens collected from at least 11 countries
- 105 specimens identified from at least 12 countries
- 20 specimens used in 4 works
Progress
Collected From
Dates Collected
- 1920 – 1925 1
- 1945 – 1950 1
- 1950 – 1955 800
- 1960 – 1965 826
- 1965 – 1970 17
Dates Identified
- 1930 – 1935 13
- 1935 – 1940 10
- 1945 – 1950 1