Charles Melvin Barber

December 27, 1876 – June 23, 1954

United States

Asteraceae

Collected Asteraceae

Robert Frederick Inger
Robert Frederick Inger

September 10, 1920 – April 12, 2019

United States

Ranidae

Collected Ranidae and identified Megophryidae

William Alfred Weber

November 16, 1918 – March 18, 2020

United States

Parmeliaceae

Collected Parmeliaceae and identified Asteraceae