- 300 specimens collected from at least 9 countries
- 15 specimens identified from at least 6 countries
- 39 specimens used in 13 works
Progress
Collected From
Dates Collected
- 1920 – 1925 2
- 1925 – 1930 3
- 1930 – 1935 20
- 1935 – 1940 15
- 1940 – 1945 2
- 1945 – 1950 37
- 1950 – 1955 11
- 1960 – 1965 3