- 1,196 specimens collected from at least 3 countries
- 175 specimens identified from at least 3 countries
- 122 specimens used in 14 works
Progress
Dates Collected
- 1930 – 1935 31
- 1935 – 1940 44
- 1945 – 1950 175
- 1950 – 1955 691
- 1955 – 1960 79
- 1960 – 1965 128
- 1970 – 1975 24
Dates Identified
- 1930 – 1935 1
- 1945 – 1950 3
- 1960 – 1965 4
- 1970 – 1975 1