Howard Alvin Crum

July 14, 1922 – April 30, 2002

United States

Pottiaceae

Collected Pottiaceae and identified Sphagnaceae

Reinhard Lotto

July 28, 1912 – August 29, 2003

Rosaceae

Collected Rosaceae and identified Gymnomitriaceae

Daniel Howard Norris

1933 – 2017

United States

Pottiaceae

Collected Pottiaceae and identified Pottiaceae

Werner Rauh

May 16, 1913 – April 07, 2000

Germany

Bromeliaceae

Collected Bromeliaceae and identified Didiereaceae

Wilfred Borden Schofield

July 19, 1927 – November 05, 2008

Canada

Sphagnaceae

Collected Sphagnaceae and identified Grimmiaceae