Index of mosses : a catalog of the names and citations for new taxa, combinations, and names for mosses published during the years 1963 through 1989 with citations of previously published basionyms and replaced names, together with lists of the names of authors of the names and lists of names of publications used in the citations - Magill, Robert E. (Missouri Botanical Garden, 1992)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1970)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 1975)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 1975)