Saprophytes Pro Parte

Triuridaceae by P. J. M. Maas and T. Rübsamen (40)
Voyria and Voyriella (Saprophytic Gentianaceae) by P. J. M. Maas and P. Ruyters (41) Burmanniaceae by P. J. M. Maas, H. Maas-van de Kamer, J. van Benthem, H. C. M. Snelders, and T. Rübsamen (42)

Triuridaceae is monograph 40 in the Flora Neotropica series. This revision of Triuridaceae deals with four genera and 14 species, of which one is newly described here.

Voyria and Voyriella is monograph 41 in the Flora Neotropica series. This revision deals with two genera: Voyria (18 species and two subspecies) and Voyriella (1 species).

 Burmanniaceae is monograph 42 in the Flora Neotropica series. This revision of the Burmanniaceae deals with 54 species and three subspecies in ten genera.