- 168 specimens collected from at least 2 countries
- 91 specimens identified from at least 3 countries
- 14 specimens used in 9 works
Progress
Dates Collected
- 1915 – 1920 1
- 1920 – 1925 15
- 1925 – 1930 16
- 1930 – 1935 4
- 1935 – 1940 41
- 1940 – 1945 16
- 1945 – 1950 44
- 1950 – 1955 3
- 1955 – 1960 2
- 1960 – 1965 3
- 1965 – 1970 21
Dates Identified
- 1925 – 1930 4
- 1935 – 1940 6
- 1945 – 1950 3
- 1960 – 1965 1
- 1965 – 1970 1