Published in Proceedings of the California Academy of Sciences, in 1970, in volume 37, pages 333-362

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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 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

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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 1875, pages 1-2

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Published in Asa Gray correspondence. Senders A, in 1888, pages 1-3

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Published in Asa Gray correspondence. Senders A, in 1889, pages 1

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Published in Veliger, in 1973, in volume 16, pages 121-122

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Published in Rhodora, in 1940, in volume 42, issue 500, pages 280

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Published in Rhodora, in 1932, in volume 34, issue 397, pages 1-4

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Published in Bulletin of The African Bird Club, in 2010, in volume 17, issue 2, pages 225-228

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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 Rhodora, in 1994, in volume 96, issue 885, pages 97-101

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Published in Phytologia, in 1980, in volume 45, pages 63-66

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Published in BULL BROOKLYN ENT SOC, in 1961, in volume 56, issue 4, pages 100-102

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Published in Rhodora, in 1934, in volume 36, issue 429, pages 344-346

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Published in Journal of Arachnology, in 1999, in volume 27, issue 3, pages 401-414

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Published in Novon, in 2000, in volume 10, pages 107-109

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Published in The Great Basin Naturalist, in 1946, in volume 7, pages 29

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Published in Botanical Gazette, in 1890, in volume 15, issue 11, pages 299-304

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Published in Annals of the Missouri Botanical Garden, in 1954, in volume 41, pages 329-338

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Published in The Auk, in 1904, in volume 21, pages 91-92

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Published in P. Asiat. Soc. Bengal, in 1871, in volume 1871, pages 115-116

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Published in Mycotaxon, in 1996, in volume 60, pages 191-200

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Published in Rhodora, in 1933, in volume 35, pages 320-322

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Published in Biol Bull, in 1983, in volume 165, pages 110-118

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Published in Biol Bull, in 1975, in volume 148, pages 357-369

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Published in Rhodora, in 1947, in volume 49, pages 67-68

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Published in Rhodora, in 2003, in volume 105, issue 921, pages 92-93

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Published in Annals of the Missouri Botanical Garden, in 1946, in volume 33, pages 147-247

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Published in American Malacological Bulletin, in 2014, in volume 32, issue 2, pages 220-222

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Published in Victorian Naturalist, in 1897, in volume 14, pages 5-7

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Published in Scopus, in 1993, in volume 17, pages 63-64

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Published in The Great Basin Naturalist, in 1984, in volume 44, pages 416-420

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Published in Victorian Naturalist, in 1985, in volume 102, pages 200-204

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Published in Torreya, in 1908, in volume 8, issue 12, pages 287-292

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Published in Veliger, in 1962, in volume 4, pages 167-174

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Published in Botanical Gazette, in 1887, in volume 12, issue 8, pages 192

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Published in Biol Bull, in 1976, in volume 150, pages 337-347

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Published in Annals of the Missouri Botanical Garden, in 1954, in volume 41, pages 395-418

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Published in Contributions From The University of Michigan Herbarium, in 1992, in volume 18, pages 3-38

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Published in The Great Basin Naturalist, in 1980, in volume 40, pages 73-77

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Published in Acta Botánica Mexicana, in 2006, in volume 74, pages 179-183

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Published in Journal of The Asiatic Society of Bengal, in 1864, in volume 32, issue III, pages 189-218

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