Published in The Wilson Bulletin, in 1974, in volume 86, issue 1, pages 1-11
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Published in The Wilson Bulletin, in 1982, in volume 94, issue 2, pages 129-138
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Published in Asa Gray correspondence. Senders A, in 1889, pages 1
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Published in Rhodora, in 2003, in volume 105, issue 921, pages 92-93
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Published in Botanical Gazette, in 1887, in volume 12, issue 8, pages 192
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Published in Bulletin du Museum national d'histoire naturelle, in 1946, in volume 18, issue 1, pages 37-40
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Published in Palaeontology, in 1964, in volume 7, issue 1, pages 85-104
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Published in Rhodora, in 1940, in volume 42, issue 500, pages 280
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Published in Botanical Gazette, in 1892, in volume 17, issue 3, pages 78-81
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Published in Rhodora, in 2002, in volume 104, issue 920, pages 325-349
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Published in Rhodora, in 1934, in volume 36, issue 429, pages 344-346
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Published in Rhodora, in 1932, in volume 34, issue 397, pages 1-4
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Published in Botanical Gazette, in 1887, in volume 12, issue 3, pages 65-66
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Published in Madroño, in 1970, in volume 20, issue 5, pages 288
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Published in Novon, in 2006, in volume 16, pages 168-204
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Published in American Fern Journal, in 1931, in volume 21, pages 11-20
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Published in American Fern Journal, in 1931, in volume 21, pages 64-71
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Published in Botanical Gazette, in 1889, in volume 14, issue 7, pages 180-181
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Published in Botanical Gazette, in 1890, in volume 15, issue 11, pages 299-304
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Published in Bulletin du Muséum national d'histoire naturelle, in 1936, in volume 8, issue 6, pages 506-511
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Published in Bulletin du Musée D'histoire Naturelle, in 1900, in volume 6, issue 5, pages 245-246
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Published in Palaeontology, in 1964, in volume 7, issue 1, pages 72-84
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Published in Journal of The Arnold Arboretum, in 1934, in volume 15, issue 1, pages 28-42
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Published in Botanical Gazette, in 1891, in volume 16, issue 2, pages 45-49
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Published in Contributions in Science, in 1989, in volume 402, pages 1-43
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Published in Rhodora, in 2001, in volume 103, issue 913, pages 96-116
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Published in Bulletin du Muséum national d'histoire naturelle, in 1939, in volume 11, issue 4, pages 378-382
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Published in Torreya, in 1936, in volume 36, issue 6, pages 150-156
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Published in Asa Gray correspondence. Senders A, in 1837, pages 1-2
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Published in Asa Gray correspondence. Senders A, in 1837, pages 1-3
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Published in Rhodora, in 1998, in volume 100, issue 901, pages 1-24
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Published in Sida, Contributions To Botany, in 1993, in volume 15, pages 619-622
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Published in Phytoneuron, in 2013, in volume 2013-35, pages 1-3
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Published in Rhodora, in 2002, in volume 104, issue 918, pages 201-204
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Published in Bulletin du Muséum national d'histoire naturelle, in 1921, in volume 27, issue 2, pages 143-150
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Published in Entomological News, in 1981, in volume 92, pages 69-74
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Published in Asa Gray correspondence. Senders A, in 1864, pages 1
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Published in Asa Gray correspondence. Senders A, in 1866, pages 1-2
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Published in Asa Gray correspondence. Senders A, in 1873, pages 1-2
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Published in Asa Gray correspondence. Senders A, in 1876, pages 1-2
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Published in Asa Gray correspondence. Senders A, in 1877, pages 1-4
Created: 2017-06-18, modified: 2017-06-18
Published in Asa Gray correspondence. Senders A, in 1873, pages 1-2
Created: 2017-06-18, modified: 2017-06-18
Published in Asa Gray correspondence. Senders A, in 1875, pages 1-2
Created: 2017-06-18, modified: 2017-06-18
Published in Bulletin du Muséum national d'histoire naturelle, in 1919, in volume 25, issue 7, pages 595-600
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Published in Bulletin du Muséum national d'histoire naturelle, in 1935, in volume 7, issue 2, pages 99-106
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Published in Bulletin du Museum national d'histoire naturelle, in 1942, in volume 14, issue 3, pages 247-248
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Published in Biol Bull, in 1973, in volume 144, pages 229-247
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Published in Bulletin du Muséum national d'histoire naturelle, in 1939, in volume 11, issue 1, pages 51-98
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Published in Bulletin du Muséum national d'histoire naturelle, in 1920, in volume 26, issue 2, pages 129-131
Created: 2022-02-02, modified: 2022-02-02
Published in Bulletin du Muséum national d'histoire naturelle, in 1920, in volume 26, issue 1, pages 33-38
Created: 2022-02-02, modified: 2022-02-02