T. L. RostDepartment of Botany, University of California, Davis, CA 95616
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P. Wang
P. WangDepartment of Botany, University of California, Davis, CA 95616
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C. Lambert
C. LambertDepartment of Botany, University of California, Davis, CA 95616
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Contributor Notes
Received for publication September 1, 1978.
The cost of publishing this paper was defrayed in part by the payment of page charges. Under postal regulations, this paper must therefore be hereby marked advertisement solely to indicate this fact.
Participant in NSF-SSTP high school program directed by Dr. V.A. Perkes, Department of Education, University of California, Davis, CA 95616.