Article
Phylogeny and biogeography of exindusiate Andean Polystichum (Dryopteridaceae).
American journal of botany - 1 Feb 2014
McHenry Monique A, Barrington David S
Abstract excerpt
PREMISE OF THE STUDY: Uplift of the tropical Andes had a significant impact on the diversification of South American flora and fauna. Recent biogeographic inquiries have established patterns of Andean divergence, but investigations on ferns are scant. The fern genus Polystichum Roth (Dryopteridaceae) combines widespread geographic and elevational distribution with a large number of species to form an ideal system...
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