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Published in Moscosoa, in 1983, in volume 2, pages 54-60
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Published in American Fern Journal, in 1913, in volume 3, pages 109-116
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Published in American Fern Journal, in 1915, in volume 5, pages 50-52
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Published in American Fern Journal, in 1946, in volume 36, issue 3, pages 91
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