Published in Annals of the Missouri Botanical Garden, in 1949, in volume 36, pages 413-431
Created: 2010-01-08, modified: 2015-12-16
Published in Annals of the Missouri Botanical Garden, in 1955, in volume 42, pages 101-102
Created: 2010-01-08, modified: 2016-12-29
Published in American Fern Journal, in 1991, in volume 81, pages 108
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Published in Rhodora, in 1980, in volume 82, issue 829, pages 1-2
Created: 2016-07-19, modified: 2016-07-19
Published in Veliger, in 1989, in volume 32, pages 313-319
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1890, pages 1
Created: 2017-06-24, modified: 2017-06-24
Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1891, pages 1
Created: 2017-06-24, modified: 2017-06-24
Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1891, pages 1-2
Created: 2017-06-24, modified: 2017-06-24
Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1891, pages 1-2
Created: 2017-06-24, modified: 2017-06-24
Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1891, pages 1
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Published in Biol Bull, in 1961, in volume 121, pages 497-506
Created: 2010-01-06, modified: 2011-06-21
Published in Biol Bull, in 1962, in volume 122, pages 228-231
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Published in American Fern Journal, in 1999, in volume 89, pages 178
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Published in Botanical Gazette, in 1904, in volume 38, issue 1, pages 71-72
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Published in Botanical Gazette, in 1895, in volume 20, issue 5, pages 232
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Published in American Fern Journal, in 1987, in volume 77, pages 28-32
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Published in Botanical Gazette, in 1902, in volume 33, issue 4, pages 284-299
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Published in Madroño, in 1939, in volume 5, issue 1, pages 16-27
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Published in Rhodora, in 1904, in volume 6, issue 68, pages 179-180
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Published in Rhodora, in 1904, in volume 6, issue 71, pages 227
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Published in Madroño, in 1939, in volume 5, issue 2, pages 74
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Published in American Fern Journal, in 1983, in volume 73, pages 94-95
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Published in University of Kansas Science Bulletin, in 1976, in volume 51, issue 3, pages 91-128
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Published in Rhodora, in 1902, in volume 4, issue 38, pages 42
Created: 2016-07-19, modified: 2016-07-19
Published in Rhodora, in 1905, in volume 7, issue 74, pages 38-39
Created: 2016-07-19, modified: 2016-07-19
Published in Botanical Gazette, in 1906, in volume 41, issue 4, pages 283-293
Created: 2017-03-14, modified: 2017-03-14
Published in Botanical Gazette, in 1892, in volume 17, issue 2, pages 40-46
Created: 2017-03-14, modified: 2017-03-14
Published in Madroño, in 1923, in volume 1, issue 5, pages 96-97
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Published in Torreya, in 1907, in volume 7, issue 5, pages 102-103
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Published in Biol Bull, in 1913, in volume 24, pages 133-146
Created: 2010-01-06, modified: 2011-06-21
Published in Rhodora, in 1902, in volume 4, issue 38, pages 28
Created: 2016-07-19, modified: 2016-07-26
Published in Botanical Gazette, in 1904, in volume 37, issue 6, pages 437-447
Created: 2017-03-14, modified: 2017-03-14
Published in Botanical Gazette, in 1890, in volume 15, issue 7, pages 177-179
Created: 2017-03-14, modified: 2017-03-14
Published in Botanical Gazette, in 1892, in volume 17, issue 3, pages 72-78
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Published in Biol Bull, in 1913, in volume 24, pages 125-132
Created: 2010-01-06, modified: 2011-06-21
Published in Biol Bull, in 1939, in volume 77, pages 423-431
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Published in Madroño, in 1961, in volume 16, issue 1, pages 23-30
Created: 2016-02-15, modified: 2016-07-07
Published in Torreya, in 1905, in volume 5, issue 3, pages 45-47
Created: 2022-12-15, modified: 2022-12-15
Published in Torreya, in 1906, in volume 6, issue 6, pages 120-123
Created: 2022-12-15, modified: 2022-12-15
Published in Rhodora, in 1992, in volume 94, issue 877, pages 100-101
Created: 2016-07-19, modified: 2016-07-19
Published in Phytologia, in 1982, in volume 50, issue 6, pages 393-400
Created: 2017-03-08, modified: 2017-03-08
Published in Rhodora, in 1903, in volume 5, issue 51, pages 77-79
Created: 2016-07-19, modified: 2016-07-19
Published in Rhodora, in 1938, in volume 40, issue 473, pages 219-220
Created: 2016-07-19, modified: 2016-07-19
Published in American Fern Journal, in 1989, in volume 79, pages 29-30
Created: 2017-04-23, modified: 2017-04-23
Published in The Wilson Bulletin, in 1915, in volume 27, issue 1, pages 272-275
Created: 2016-11-27, modified: 2016-11-27
Published in Madroño, in 1978, in volume 25, issue 1, pages 59
Created: 2016-02-15, modified: 2016-07-07
Published in Cr Ac Sci, in 1902, in volume 134, pages 961-964
Created: 2012-06-26, modified: 2023-02-16
Published in Proceedings of the California Academy of Sciences, in 1927, in volume 16, pages 361-363
Created: 2011-06-28, modified: 2021-04-05
Published in Rhodora, in 1902, in volume 4, issue 41, pages 94-97
Created: 2016-07-19, modified: 2016-07-19
Published in Rhodora, in 1904, in volume 6, issue 67, pages 162-163
Created: 2016-07-19, modified: 2016-07-19