Contributions from the University of Michigan Herbarium - University of Michigan. University Herbarium. (University Herbarium, University of Michigan, 1980)

Cryptogamie. Algologie - Laboratoire de cryptogamie, Paris (ADAC, 1997)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1968)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1968)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 2014)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 2014)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 2017)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 2017)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 2017)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 2017)