Contributions to the lichen flora of Pennsylvania: A checklist of lichens collected during the First Howard Crum Bryological Workshop, Delaware Water Gap National Recreation Area.
Harris, Richard C. Lendemer, James C.
Article
2005
Opuscula philolichenum
2
1--10
Harvard University Botany Libraries
Philadelphia J. Lendemer 2004-
In copyright. Digitized with the permission of the rights holder.
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https://creativecommons.org/licenses/by-nc-sa/4.0/
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