Published in American Fern Journal, in 1960, in volume 50, pages 270-275

Created: 2017-04-23, modified: 2017-04-23

Published in American Fern Journal, in 1976, in volume 66, pages 113-115

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Published in American Fern Journal, in 1995, in volume 85, pages 283-305

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Published in American Fern Journal, in 1995, in volume 85, pages 134-181

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Published in The Wilson Bulletin, in 1974, in volume 86, issue 4, pages 344-356

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Published in Phytologia, in 1977, in volume 37, issue 5, pages 449-450

Created: 2016-05-06, modified: 2016-05-06

Published in American Fern Journal, in 1915, in volume 5, pages 7-9

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Published in American Fern Journal, in 1919, in volume 9, pages 58-59

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Published in American Fern Journal, in 1919, in volume 9, pages 115-117

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Published in American Fern Journal, in 1925, in volume 15, pages 62-65

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Published in American Fern Journal, in 1925, in volume 15, pages 98-100

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Published in American Fern Journal, in 1925, in volume 15, pages 123-124

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Published in American Fern Journal, in 1928, in volume 18, pages 23-26

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Published in American Fern Journal, in 1928, in volume 18, pages 58-59

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Published in American Fern Journal, in 1931, in volume 21, pages 24-25

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Published in American Fern Journal, in 1931, in volume 21, pages 109-111

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Published in American Fern Journal, in 1931, in volume 21, pages 26-27

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Published in American Fern Journal, in 1931, in volume 21, pages 111

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Published in Biol Bull, in 1969, in volume 136, pages 288-300

Created: 2010-01-06, modified: 2011-06-21

Published in Rhodora, in 1967, in volume 69, issue 777, pages 51-4

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Published in Rhodora, in 1963, in volume 65, issue 764, pages 359-63

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Published in Jour Washington Acad Sci, in 1939, in volume 29, pages 1-14

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Published in Phytologia, in 1976, in volume 33, issue 4, pages 296-302

Created: 2016-05-06, modified: 2016-05-06

Published in Rhodora, in 1919, in volume 21, issue 241, pages 24

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Published in The Wilson Bulletin, in 1956, in volume 68, issue 4, pages 282-304

Created: 2016-12-04, modified: 2016-12-04

Published in American Fern Journal, in 1915, in volume 5, pages 9-10

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Published in American Fern Journal, in 1925, in volume 15, pages 87-90

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Published in Novon, in 2001, in volume 11, pages 360-365

Created: 2011-01-28, modified: 2016-02-16

Published in Annals And Magazine of Natural History, in 1864, in volume 13, pages 184

Created: 2011-09-28, modified: 2011-09-28

Published in Phytoneuron, in 2014, in volume 2014-57, pages 1-12

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Published in Memoirs of the Queensland Museum, in 1945, in volume 12, issue 3, pages 134-135

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Published in Rhodora, in 1920, in volume 22, issue 262, pages 167-168

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Published in Botanical Gazette, in 1893, in volume 18, issue 5, pages 183-186

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Published in Botanical Gazette, in 1919, in volume 68, issue 3, pages 208-221

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Published in American Fern Journal, in 1919, in volume 9, pages 88-93

Created: 2017-04-23, modified: 2017-04-23

Published in American Fern Journal, in 1922, in volume 12, pages 58-63

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Published in American Fern Journal, in 1925, in volume 15, pages 19-21

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Published in American Fern Journal, in 1925, in volume 15, pages 21-22

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Published in American Fern Journal, in 1928, in volume 18, pages 94-95

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Published in American Fern Journal, in 1928, in volume 18, pages 124-128

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Published in American Fern Journal, in 1931, in volume 21, pages 74-75

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Published in American Fern Journal, in 1931, in volume 21, pages 139-140

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Published in American Fern Journal, in 1962, in volume 52, pages 132-133

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Published in American Fern Journal, in 1970, in volume 60, pages 119-128

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Published in American Fern Journal, in 1910, in volume 1, pages 22-23

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Published in American Fern Journal, in 1911, in volume 1, pages 40-43

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Published in American Fern Journal, in 1911, in volume 1, pages 75-77

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Published in American Fern Journal, in 1911, in volume 1, pages 104

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Published in American Fern Journal, in 1913, in volume 3, pages 83-85

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Published in American Fern Journal, in 1915, in volume 5, pages 108-113

Created: 2017-04-23, modified: 2017-04-23