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

A monograph of the lichen genus Relicina (Parmeliaceae) /
by: Hale, Mason E.
Published: (1975)

A monograph of the lichen genus Pseudoparmelia Lynge (Parmeliaceae) /
by: Hale, Mason E.
Published: (1976)

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)

The lichen genus Steinera /
by: Henssen, Aino M.
Published: (1982)

A revision of the lichen genus Hypotrachyna (Parmeliaceae) in tropical America /
by: Hale, Mason E.
Published: (1975)

The lichen genus Ramalina in Australia /
by: Stevens, G. Nell
Published: (1987)

The lichen genus Usnea subgenus Neuropogon /
by: Walker, F. Joy
Published: (1985)

A monograph of the lichen genus Parmelia Acharius sensu stricto (Ascomycotina : Parmeliaceae) /
by: Hale, Mason E.
Published: (1987)

A revision of the lichen genus Xanthoparmelia in Australasia /
by: Elix, J. A.
Published: (1986)

Morden-Smithsonian Expedition to Dominica, the lichens (Parmeliaceae) /
by: Hale, Mason E.
Published: (1971)

A revision of the lichen family Thelotremataceae in Panama /
by: Hale, Mason E.
Published: (1978)

A taxonomic study of the lichen genus Micarea in Europe /
by: Coppins, Brian John
Published: (1983)

A revision of the lichen family Thelotremataceae in Sri Lanka /
by: Hale, Mason E.
Published: (1981)

Studies in Pseudocyphellaria (lichens) /
by: Galloway, David J.
Published: (1988)

Fine structure of the cortex in the lichen family Parmeliaceae viewed with the scanning-electron microscope /
by: Hale, Mason E.
Published: (1973)

The genus Utricularia : a taxonomic monograph /
by: Taylor, Peter
Published: (1989)

Morden-Smithsonian Expedition to Dominica : the lichens (Thelotremataceae) /
by: Hale, Mason E.
Published: (1974)

Parmelia subgenus Amphigymnia (lichens) in East Africa /
by: Krog, Hildur
Published: (1981)

Morden-Smithsonian Expedition to Dominica : the lichens (Graphidaceae) /
by: Wirth, Michael
Published: (1978)

The genus Crepis.
by: Babcock, E. B. (Ernest Brown), 1877-1954
Published: (1947)

Studies on the lichen genus Xanthoparmelia (Vainio) Hale in Texas /
by: Derstine, Kittie Sue
Published: (1978)

Oregon State monographs.

The genus Clarkia /
by: Lewis, Harlan, 1919-
Published: (1955)

The genus Lithophragma (Saxifragaceae) /
by: Taylor, Roy L.
Published: (1965)

Genus Labordia. : Hawaiian Euphorbiaceae, Labiatae and Compositae /
by: Sherff, Earl Edward, 1886-1966
Published: (1939)

The genus Thrinax (Palmae : Coryphoideae) /
by: Read, Robert W., 1931-
Published: (1975)

A revision of the genus Olyra and the new segregate genus Parodiolyra (Poaceae:Bambusoideae:Olyreae) /
by: Soderstrom, Thomas R.
Published: (1989)

A revision of the genus Sabia Colebrooke /
by: Chen, Sin-ying, 1910-
Published: (1943)

A revision of the Andean genus Niphogeton (Umbelliferae) /
by: Mathias, Mildred E. (Mildred Esther), 1906-1995
Published: (1951)

The genus Osmorhiza (Umbelliferae) ; a study in geographic affinities /
by: Constance, Lincoln, 1909-2001
Published: (1948)

A monograph of Dryopteris (Pteridophyta: Dryopteridaceae) in the Indian subcontinent /
by: Fraser-Jenkins, Christopher R.
Published: (1989)

Revision of the genus Morganella (Lycoperdaceae).
by: Ponce de Leon, Patricio
Published: (1971)

Revision of the genus Psyllocarpus (Rubiaceae) /
by: Kirkbride, Joseph H.
Published: (1979)

Hawaiian representatives of the genus Caulerpa.
by: Eubank, Lois Lillian, 1919-
Published: (1946)

Cytotaxonomic studies in the genus Sorghum.
by: Garber, Edward D. (Edward David), 1918-
Published: (1950)