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A Revision of Sullivantia (Saxifragaceae)

Douglas E. Soltis
Brittonia
Vol. 43, No. 1 (Jan. - Mar., 1991), pp. 27-53
Published by: Springer on behalf of the New York Botanical Garden Press
Stable URL: http://www.jstor.org/stable/2807176
Page Count: 27
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A Revision of Sullivantia (Saxifragaceae)
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Abstract

Sullivantia (Saxifragaceae) is restricted to the United States; its species occur in very specialized habitats such as wet cliffs and moist canyon walls in scattered localities from Washington and Oregon, eastward to Wyoming, Montana, Colorado, Missouri, Iowa, Illinois, Minnesota, Wisconsin, Indiana, Ohio, and Virginia. Relationships in the genus were reevaluated using data from morphology (including the use of greenhouse-grown plants), crossability, and flavonoid chemistry. The conclusion of this study is that Sullivantia comprises four morphologically similar allopatric taxa: S. oregana, S. hapemanii var. hapemanii, S. hapemannii var. purpusii, and S. sullivantii.

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