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Published in Entomologische Zeitung Stettin, in 1879, in volume 40, pages 106-109

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Published in Pacific Science, in 1959, in volume 13, issue 4, pages 335-341

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Published in Annals of the Missouri Botanical Garden, in 1990, in volume 77, pages 110-117

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Published in Novon, in 2008, in volume 18, pages 189-191

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Published in American Fern Journal, in 1987, in volume 77, pages 1-15

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Published in Madroño, in 1974, in volume 22, issue 8, pages 381-390

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Published in Proceedings of The American Philosophical Society, in 1896, in volume 35, issue 152, pages 205-212

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Published in Phytologia, in 2017, in volume 99, issue 1, pages 74-82

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Published in Journal of Arachnology, in 1999, in volume 27, issue 3, pages 165-170

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Published in Bulletin du Muséum national d'histoire naturelle, in 1967, in volume 39, issue 3, pages 573-582

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Published in Biol Bull, in 1947, in volume 93, pages 114-121

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Published in Annals of the Missouri Botanical Garden, in 1931, in volume 18, pages 509-540

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Published in Annals of the Missouri Botanical Garden, in 1981, in volume 68, pages 524-526

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