Erik Leonard Ekman
Ekman, Erik Leonard

* October 14, 1883 – January 15, 1931 †

Sweden

Collected Poaceae and identified Asteraceae

Alwyn Howard Gentry
Gentry, Alwyn Howard

* January 06, 1945 – August 03, 1993 †

United States

Collected Bignoniaceae and identified Bignoniaceae

Charles Wright
Wright, Charles

* October 29, 1811 – August 11, 1885 †

United States

Collected Poaceae and identified Characeae