Presented as thesis (Ph. D.)--University of Wisconsin--Madison, 1930. / Cover title. Reprinted from American journal of botany, vol. XVIII, no. 5 (May 1931). Includes bibliographical references (p. 353-356).
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/636132152 |
| Date | January 1900 |
| Creators | Cooper, Delmer Clair, |
| Publisher | [Brooklyn, |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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