A monograph of the lichen genus relicina (Parmeliaceae) /

by Hale, Mason E.
Published 1975

A synopsis of the Lichen Genus xanthoparmelia (Vainio) Hale (Ascomycotina, Parmeliaceae) /

by Hale, Mason E.
Published 1990

A monograph of the lichen genus parmelia acharius sensu stricto (Ascomycotina : parmeliaceae) /

by Hale, Mason E.
Published 1987

A monograph of the Lichen Genus Pseudoparmelia Lynge (Parmeliaceae) /

by Hale, Mason E.
Published 1976

A revision of the lichen genus Hypotrochyna (Parmeliaceae) in tropical America /

by Hale, Mason E.
Published 1972

Fine structure on the cortex in the lichen family Parmeliaceae viewed with the scanning-electron microscope /

by Hale, Mason E.
Published 1977

How to know the lichens /

by Hale, Mason E.
Published 1969

The biology of lichens /

by Hale, Mason E.
Published 1967

Lichen handbook : a guide to the lichens of eastern North America /

by Hale, Mason E.
Published 1961

The Lichens /

by Ahmadjian, Vernon, Ahmadjian, Vernon
Published 1973