Distribution of Interrupted Fern (Osmunda claytoniana) specimens in the ISM Herbarium |
Osmunda claytoniana Records for Cook County, Illinois- ISM accession# 31778
- Collector: Fuller, George D.
Date: 13 May 1938 - ISM accession# 100519
- Collector: Shildneck, Paul
Date: 26 Jul 1973
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