Distribution of Oak Fern (Gymnocarpium dryopteris) specimens in the ISM Herbarium |
Gymnocarpium dryopteris Records for Ogle County, Illinois- ISM accession# 1920
- Collector: Fell, E.w.& G.b.
Date: 23 Jun 1946 - ISM accession# 1921
- Collector: Fell, E.w.& G.b.
Date: 23 Jun 1946 - ISM accession# 22760
- Collector: Fell, E.w.& G.b.
Date: 27 Apr 1946 - ISM accession# 68899
- Collector: Spongberg, Stephen
Date: 07 Jun 1963
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