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Ferns of Iowa
Published in Botanical Gazette, in 1882, in volume 7, issue 6, pages 73
Created: 2017-03-14, modified: 2017-03-14
Two ferns new to Virginia
Published in Rhodora, in 1942, in volume 44, issue 521, pages 191-192
Created: 2014-06-16, modified: 2016-07-26