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A New Southern Hemisphere Species of Potentilla (Rosaceae)

A. Castagnaro, J. Diaz Ricci, M. Arias and P. Albornoz
Novon
Vol. 8, No. 4 (Winter, 1998), pp. 333-336
DOI: 10.2307/3391852
Stable URL: http://www.jstor.org/stable/3391852
Page Count: 4
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A New Southern Hemisphere Species of Potentilla (Rosaceae)
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Abstract

Potentilla tucumanensis A. Castagnaro & M. Arias, sp. nov., from Tucumán, Argentina, is described and illustrated. Potentilla tucumanensis was originally determined as P. norvegica. The latter and P. anserina were the only two species of this large genus primarily of the Northern Hemisphere cited from Argentina. Potentilla tucumanensis is distinguished from P. norvegica by morphological-reproductive (flowers and achenes), anatomical (stomata), and genetic (chromosome number) characters.

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