Published in Biol Bull, in 1916, in volume 31, pages 364-372
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Published in Rhodora, in 1964, in volume 66, issue 768, pages 371-374
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Published in Asa Gray correspondence. Senders A, in 1890, pages 1
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Published in Asa Gray correspondence. Senders A, in 1888, pages 1
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Published in Asa Gray correspondence. Senders A, in 1890, pages 1
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Published in Asa Gray correspondence. Senders A, in 1893, pages 1
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Published in Annals of Applied Biology, in 1917, in volume 4, pages 4-14
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Published in Torreya, in 1922, in volume 22, issue 2, pages 30-31
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Published in Botanical Museum Leaflets, Harvard University, in 1967, in volume 22, pages 33-63
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Published in The Auk, in 1917, in volume 34, pages 230-231
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Published in Rhodora, in 1943, in volume 45, issue 534, pages 217-220
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Published in Annals And Magazine of Natural History, in 1845, in volume 16, pages 221-227
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Published in Botanical Museum Leaflets, Harvard University, in 1954, in volume 16, pages 261-264
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Published in Botanical Gazette, in 1891, in volume 16, issue 8, pages 225-227
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Published in Torreya, in 1909, in volume 9, issue 2, pages 21-28
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Published in Annals And Magazine of Natural History, in 1846, in volume 17, pages 12-20
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Published in Botanical Museum Leaflets, Harvard University, in 1957, in volume 18, pages 57-76
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Published in Botanical Museum Leaflets, Harvard University, in 1963, in volume 20, pages 117-160
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Published in Annals And Magazine of Natural History, in 1848, in volume 1, pages 295-303
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Published in The Wilson Bulletin, in 1896, in volume 8, issue 4, pages 2
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Published in Botanical Museum Leaflets, Harvard University, in 1956, in volume 17, pages 125-150
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Published in Biol Bull, in 2003, in volume 204, pages 81-95
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Published in Biol Bull, in 1949, in volume 97, pages 145-149
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Published in Mycologia, in 1909, in volume 1, issue 6, pages 225-256
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Published in Mycologia, in 1912, in volume 4, issue 1, pages 7-33
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Published in Mycologia, in 1912, in volume 4, issue 2, pages 49-65
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Published in Mycologia, in 1910, in volume 2, issue 5, pages 213-240
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Published in Botanical Gazette, in 1883, in volume 8, issue 4, pages 199-201
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Published in Botanical Gazette, in 1886, in volume 11, issue 1, pages 14-17
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Published in Botanical Gazette, in 1906, in volume 41, issue 4, pages 301-302
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Published in Botanical Gazette, in 1919, in volume 68, issue 2, pages 147-148
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Published in Torreya, in 1921, in volume 21, issue 1, pages 11-12
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Published in Torreya, in 1917, in volume 17, issue 2, pages 24-27
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Published in Ent. News, in 1913, in volume 24, pages 49-52
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Published in American Naturalist, in 1906, in volume 40, pages 683-706
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Published in Scopus, in 1981, in volume 5, pages 116-120
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Published in The Wilson Bulletin, in 1898, in volume 10, issue 4, pages 10-12
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Published in Ibis, in 1906, in volume 6, issue 1, pages 57-84
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Published in Botanical Museum Leaflets, Harvard University, in 1956, in volume 17, pages 217-239
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Published in The Auk, in 1905, in volume 22, pages 420
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Published in Rhodora, in 1900, in volume 2, issue 23, pages 221-223
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Published in Journal of Mycology, in 1907, in volume 13, issue 1, pages 29-32
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Published in Botanical Gazette, in 1896, in volume 22, issue 6, pages 463-472
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Published in Botanical Gazette, in 1897, in volume 23, issue 1, pages 44-46
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Published in Madroño, in 1979, in volume 26, issue 1, pages 1-12
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Published in Torreya, in 1904, in volume 4, issue 2, pages 21-23
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Published in North American Flora, in 1925, in volume 7, issue 10, pages 669-732
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Published in North American Flora, in 1926, in volume 7, issue 11, pages 733-796
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Published in North American Flora, in 1927, in volume 7, issue 12, pages 797-848
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