The Genus Silphium in Ohio

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Title: The Genus Silphium in Ohio
Creators: Fisher, T. Richard
Issue Date: 1966-05
Citation: The Ohio Journal of Science. v66 n3 (May, 1966), 259-263
Abstract: The genus Silphium is represented in Ohio by four species, S. perfoliatum L., S. trifoliatum L., S. laciniatum L., and S. terebinthinaceum Jacqs. Two of these species, S. laciniatum and S. terebinthinaceum, have hybridized in a prairie habitat west of Marion, Ohio. This population has been analyzed using the Gay Method of population analysis. In contrast to a similar population of hybridizing individuals from Coles County, Illinois, where backcrossing is apparently in the direction of S. laciniatum, backcrossing in the Marion, Ohio, population appears to be in the direction of S. terebinthinaceum.
Description: Author Institution: Department of Botany and Plant Pathology, The Ohio State University, Columbus, Ohio 43210
ISSN: 0030-0950
Rights: Reproduction of articles for non-commercial educational or research use granted without request if credit to The Ohio State University and The Ohio Academy of Science is given.
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