Lichens of CaliforniaMason E. Hale, Mason E. Hale Jr., Mariette Cole · First published 1988Open the Tome
A revision of the lichen family Thelotremataceae in Sri LankaMason E. Hale · First published 1981Open the Tome
A revision of the lichen genus Hypotrachyna (Parmeliaceae) in tropical AmericaMason E. Hale · First published 1975Open the Tome
Morden-Smithsonian Expedition to DominicaMason E. Hale · First published 1971 · Latest edition 1974AdventureOpen the Tome
Vertical distribution of cryptogams in a red maple swamp in ConnecticutMason E. Hale · First published 1965Open the Tome
The Parmelia conspersa group in North America and EuropeMason E. Hale · First published 1964Open the Tome