- 569 specimens collected from at least 5 countries
- 245 specimens identified from at least 11 countries
- 522 specimens used in 54 works
Progress
Dates Collected
- 1925 – 1930 1
- 1930 – 1935 14
- 1935 – 1940 1
- 1950 – 1955 2
- 1955 – 1960 1
- 1960 – 1965 274
- 1965 – 1970 81
- 1970 – 1975 58
- 1975 – 1980 1
- 1980 – 1985 72