Charles C. Deam

August 30, 1865 – May 29, 1953

United States

Cyperaceae

Collected Cyperaceae and identified Poaceae

Henri François Pittier
Henri François Pittier

August 13, 1857 – January 27, 1950

Switzerland; United States; Venezuela

Fabaceae

Collected Fabaceae and identified Melastomataceae

Adolphe Tonduz

1862 – 1921

Switzerland

Piperaceae

Collected Piperaceae and identified Piperaceae

Hans von Türckheim
Hans von Türckheim

May 27, 1853 – May 07, 1920

Germany

Asteraceae

Collected Asteraceae and identified Lamiaceae