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A New Species of the Asiatic Genus Stroganowia (Cruciferae) from North America and Its Biogeographic Implications

Reed C. Rollins
Systematic Botany
Vol. 7, No. 2 (Apr. - Jun., 1982), pp. 214-220
DOI: 10.2307/2418329
Stable URL: http://www.jstor.org/stable/2418329
Page Count: 7
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A New Species of the Asiatic Genus Stroganowia (Cruciferae) from North America and Its Biogeographic Implications
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Abstract

Stroganowia tiehmii, discovered in Nevada by Arnold Tiehm and his associates, is the only New World member of this otherwise central Asiatic genus. The disjunction evident in Stroganowia is an extreme case. Other genera of the Cruciferae show several patterns of disjunction but their geographical distributions also point to a definite relationsip between the floras of central Asia and interior western North America.

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