Tryon, Rolla Milton,  1916- <br/><br/>
Ferns of Minnesota  [electronic resource] / 
 Ferns and fern allies of Minnesota 
Rolla Tryon ; ill. by Wilma Monserud. 
 - 2d ed., rev. 
 - Minneapolis :  University of Minnesota Press,  c1980. 
 - 165 p., [4] leaves of plates :  ill. (some col.), maps. 
<br/><br/> Edition for 1954 published under title: The ferns and fern allies of Minnesota. 
<br/><br/>Includes bibliography and index. 
<br/><br/><br/>Electronic reproduction. Ann Arbor, MI : ProQuest, 2015. Available via World Wide Web. Access may be limited to ProQuest affiliated libraries. 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Ferns--Minnesota--Identification.<br/>Pteridophyta--Minnesota--Identification.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Electronic books.
<br/><br/><label>LC Class. No.: </label>QK525.5.M6  / T7 1980