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Document Type

Research

Abstract

The species of Agropyron constitute a highly variable group. Especially is this true of forms occurring in the western part of the United States. The ones found in Iowa, although fewer in number and often clear cut in character, frequently present difficulties in classification. It is the purpose of this paper to clarify some of these difficulties and to point out the more constant characters. The more common variations observed by the author are also described. Distribution maps were also made, based upon material in the herbaria at Iowa State College, Grinnell College and the University of Iowa. Further distribution was recorded by personal observation and collection. Although not entirely complete, the material available does indicate the general distribution in the state.

Publication Date

1939

Journal Title

Proceedings of the Iowa Academy of Science

Volume

46

Issue

1

First Page

97

Last Page

104

Copyright

© Copyright 1939 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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