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1 October 2010 Adiantum camptorachis (Pteridaceae), a New Species from South America with Notes on the Taxonomy of Related Species from the Southern Cone and Bolivia
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Abstract

We describe Adiantum camptorachis from the Tucumano-Boliviano forests of southern Bolivia and northwestern and central Argentina. This species was previously confused with A. glanduliferum, which is found on the Pacific side of Andes from southern Peru to central Chile. Adiantum camptorachis differs by having rhizome scales with distally ciliate margins, erose pinna margins, and by having a flexuous rachis. We also provide a detailed description for A. rufopunctatum, which had previously been treated as a synonym of A. raddianum by several authors. A key to similar South American species is presented. It includes all species with decompound non-conform laminae and orbicular to reniform or lunate sori in the Southern Cone, including Argentina Chile, Bolivia, Brazil, Paraguay, and Uruguay.

Michael A. Sundue, Jefferson Prado, and Alan R. Smith "Adiantum camptorachis (Pteridaceae), a New Species from South America with Notes on the Taxonomy of Related Species from the Southern Cone and Bolivia," American Fern Journal 100(4), 195-206, (1 October 2010). https://doi.org/10.1640/0002-8444-100.4.195
Published: 1 October 2010
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