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Authors whose works are in public domain in at least one jurisdiction

List of works by Mason Ellsworth Hale

A Monograph of the Lichen Genus Parmelia Acharius sensu stricto (Ascomycotina: Parmeliaceae) ⬇️

Smithsonian contributions to botany No. 66

A monograph of the lichen genus Bulbothrix Hale (Parmeliaceae) ⬇️

Washington: Smithsonian Institution Press, 1976.

A monograph of the lichen genus Parmelina Hale (Parmeliaceae) ⬇️

Washington: Smithsonian Institution Press, 1976.

A monograph of the lichen genus Pseudoparmelia Lynge (Parmeliaceae) ⬇️

Washington: Smithsonian Institution Press, 1976.

A monograph of the lichen genus Relicina (Parmeliaceae) ⬇️

Washington: Smithsonian Institution Press, 1975.

A revision of the lichen family Thelotremataceae in Panama ⬇️

Washington: Smithsonian Institution Press, 1978.

A revision of the lichen genus Hypotrachyna (Parmeliaceae) in tropical America ⬇️

Washington: Smithsonian Institution Press, 1975.

Fine structure of the cortex in the lichen family Parmeliaceae viewed with the scanning-electron microscope ⬇️

Washington: Smithsonian Institution Press [for sale by the Supt. of Docs., U.S. Govt. Print. Office], 1973.

Morden-Smithsonian Expedition to Dominica--the lichens (Graphidaceae) ⬇️

Washington: Smithsonian Institution Press, 1978.

Morden-Smithsonian Expedition to Dominica: the lichens (Parmeliaceae) ⬇️

Washington, Smithsonian Institution Press; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.]1971.

Morden-Smithsonian Expedition to Dominica: the lichens (Thelotremataceae) ⬇️

Washington, Smithsonian Institution Press; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.]1974.

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