Ellen SutterDepartment of Floriculture and Ornamental Horticulture, Cornell University, Ithaca, New York 14853
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R. W. Langhans
R. W. LanghansDepartment of Floriculture and Ornamental Horticulture, Cornell University, Ithaca, New York 14853
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Contributor Notes
Received for publication October 9, 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.