The ferns and fern allies of Wisconsin
Tryon, Rolla Milton
The ferns and fern allies of Wisconsin by R.M. Tryon, Jr. [and others. - 2d ed. - Madison University of Wisconsin Press 1953. - v, 158 p. illus., maps. 26 cm.
Bibliography: p. 151.
53009676
Pteridophyta
Ferns--Wisconsin.
QK525.5.W5 / T76 1953
587
The ferns and fern allies of Wisconsin by R.M. Tryon, Jr. [and others. - 2d ed. - Madison University of Wisconsin Press 1953. - v, 158 p. illus., maps. 26 cm.
Bibliography: p. 151.
53009676
Pteridophyta
Ferns--Wisconsin.
QK525.5.W5 / T76 1953
587