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Dale J. Hagenah

2 books

Books by Dale J. Hagenah

The log fern (Dryopteris celsa
The log fern (Dryopteris celsa) and its hybrids in Michigan
1969
A natural Hybrid of Polystichu
A natural Hybrid of Polystichum lonchitis and P. Acrostichoides from the Bruce Peninsula
1954