The vascular plants of southern Ontario
Subtitle: a preliminary check list of ferns, fern allies, conifers and flowering plants, found growing without cultivation in the Ontario peninsula south of the Canadian Shield
By: by James H. Soper.  Issued by the Check-List Committee of the Federation of Ontario Naturalists ...
Contributors: University of Toronto. Dept. of Botany; Federation of Ontario Naturalists
Publisher: Published jointly by the Dept. of Botany, University of Toronto and Federation of Ontario Naturalists
Published: 1949
Place of publication: Toronto
Language: eng
Number of pages: 95
Subjects: Botany -- Ontario
Notes: Bibliography: leaves v-vi.

Porsild Collection.