Allen, Paul H.

* August 29, 1911 – November 14, 1963 †

United States

Piperaceae

Collected Piperaceae and identified Orchidaceae

Seibert, Russell Jacob

* August 14, 1914 – November 28, 2004 †

United States

Collected Euphorbiaceae and identified Bignoniaceae

Steyermark, Julian Alfred

* January 27, 1909 – October 15, 1988 †

United States

Poaceae

Collected Poaceae and identified Rubiaceae