A NEW SPECIES OF AGROPYRON FROM THE GREAT LAKES
- 1 September 1961
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Botany
- Vol. 39 (5) , 1169-1175
- https://doi.org/10.1139/b61-102
Abstract
The Agropyron population from the shores of the upper Great Lakes is considered to be morphologically distinct from that of the plains' species A. dasystachyum (Hook.) Scribn. and is here described as A. psammophilum. The geographical range is mapped and shown to be disjunct from that of the plains' species. A. psammophilum consistently occupies a sandy shore habitat. The species is tetraploid (2n = 28). Several explanations for the presence of empty pollen grains in some specimens of A. psammophilum are presented.Keywords
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