Has collected specimens later identified by:
Collected Brassicaceae and identified Brassicaceae
Viktor Ferdinand Brotherus
* October 28, 1849 – February 09, 1929 †
Finland; Grand Duchy of Finland; Russian Empire

Collected Bryaceae and identified Pottiaceae
Collected Fabaceae and identified Fabaceae
Norbert Holstein
United Kingdom

Collected Fabaceae and identified Cucurbitaceae
Collected Poaceae and identified Poaceae

Collected Asteraceae and identified Asteraceae