1 January 2001 The Group of Adiantum gracile in Brazil and Environs
David B. Lellinger, Jefferson Prado
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The Adiantum gracile group of Brazil and adjacent Bolivia is a natural group distinguishable from A. tetraphyllum and related species. We provide a key to the group and describe two new Brazilian species belonging to the group, A. cinnamomeum and A. dawsonii.

David B. Lellinger and Jefferson Prado "The Group of Adiantum gracile in Brazil and Environs," American Fern Journal 91(1), 1-8, (1 January 2001). https://doi.org/10.1640/0002-8444(2001)091[0001:TGOAGI]2.0.CO;2
Published: 1 January 2001
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