Systematic Botany Monographs,

3 primary works

Systematics of Oenothera Section Oenothera Subsection Raimannia & Subsection Nutantigemma (Onagraceae)

by Warren L Wagner and Werner Dietrich

Published 1 August 1988

Systematics of Epilobium (Onagraceae) in China

by Director Peter H Raven and Chia-Jui Chen

Published 1 April 1992

Systematics of Oenothera Section Oenothera Subsection Oenothera (Onagraceae)

by Director Peter H Raven, Warren L Wagner, and Werner Dietrich

Published 31 March 1997