Elias Magnus Fries
Fries, Elias Magnus

* August 15, 1794 – February 08, 1878 †

Sweden

Collected Poaceae and identified Poaceae

Theodor Magnus Fries
Fries, Theodor Magnus

* October 28, 1832 – March 29, 1913 †

Sweden

Collected Parmeliaceae and identified Cyperaceae

Klas Robert Elias Fries
Fries, Klas Robert Elias

* July 11, 1876 – January 29, 1966 †

Sweden

Collected Asteraceae and identified Annonaceae