Monograph of the Genus Radula Subgenus Amentuloradula (Radulaceae, Marchantiophyta)

Chatchaba Promma, Matt A. M. Renner and Rui-Liang Zhu

A Taxonomic Revision of Piper (Piperaceae) in Honduras

Allan J. Bornstein and Felix G. Coe

A Taxonomic Revision of Dipteryx, a Neotropical Papilionoid Legume Genus of Tonka Beans and Cumaru Giant Trees

Catarina S. Carvalho, Domingos Benício Oliveira Silva Cardoso, and Haroldo Cavalcante de Lima

A MONOGRAPH OF COREOPSIS S.S., BURNELLIA, GYROPHYLLUM, PSEUDOAGARISTA, AND SILPHIDIUM (COREOPSIDEAE – COMPOSITAE)

Mesfin Tadesse and Daniel J. Crawford

A REVISION OF BEGONIA SECTION GOBENIA

Mark C. Tebbitt and Álvaro J. Pérez