The taxonomy of poison ivy, with a note of the origin of the generic name,
University Library, University of Illinois Urbana Champaign
University of Illinois Urbana-Champaign
In copyright. Digitized with the permission of the rights holder.
Permission to scan granted by the Field Museum of Chicago
Evidence reported by scanner-christopher-jones for item taxonomyofpoisonFimcna on March 16, 2007: no visible notice of copyright; stated date is 1925.