Published in Proceedings of The American Philosophical Society, in 1880, in volume 19, issue 107, pages 111-116

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Published in The Auk, in 1887, in volume 4, pages 150-152

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Published in Zoologica, in 1965, in volume 49, issue 12, pages 193-210

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Published in Jour Washington Acad Sci, in 1933, in volume 23, pages 36-46

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Published in The Auk, in 1902, in volume 19, pages 309-311

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Published in Annals And Magazine of Natural History, in 1891, in volume 8, pages 298-299

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Published in Annals of the Missouri Botanical Garden, in 2006, in volume 93, issue 1, pages 94-102

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Published in Phytologia, in 1985, in volume 58, issue 2, pages 105-164

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Published in Gayana Botanica, in 1995, in volume 52, pages 1-5

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Published in Nautilis, in 1932, in volume 45, pages 127-128

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Published in The Wilson Bulletin, in 1933, in volume 45, issue 1, pages 10-11

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Published in The Auk, in 1908, in volume 25, pages 90

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Published in Journal of The Washington Academy of Sciences, in 1958, in volume 48, pages 18-21

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Published in Ibis, in 1889, in volume 1, issue 4, pages 446-475

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Published in The Auk, in 1891, in volume 8, pages 301

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Published in Phytologia, in 1998, in volume 84, issue 2, pages 69-86

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Published in Zoologica, in 1936, in volume 21, issue 19, pages 225-229

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Published in Proceedings of The Zoological Society of London, in 1883, in volume 1883, pages 175-186

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Published in Ibis, in 1890, in volume 2, issue 3, pages 344-345

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Published in Ibis, in 1907, in volume 1, issue 4, pages 578-614

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Published in Ibis, in 1912, in volume 6, issue 2, pages 332-333

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Published in Journal of The New York Entomological Society, in 1908, in volume 16, pages 188-189

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Published in Victorian Naturalist, in 2013, in volume 130, issue 1, pages 49-52

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Published in Western Australian Naturalist, in 1984, in volume 16, issue 1, pages 21

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Published in Ibis, in 1869, in volume 5, issue 2, pages 170-186

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Published in Rhodora, in 1905, in volume 7, issue 84, pages 269

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Published in Madroño, in 1946, in volume 8, issue 6, pages 193-195

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Published in Phytologia, in 1991, in volume 71, pages 160-162

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Published in Phytologia, in 1993, in volume 75, pages 170-175

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Published in Ibis, in 1890, in volume 2, issue 3, pages 345-350

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Published in Ibis, in 1910, in volume 4, issue 4, pages 716-729

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Published in Phytologia, in 1997, in volume 83, issue 6, pages 385-389

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Published in Madroño, in 1949, in volume 10, issue 3, pages 87-93

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Published in Madroño, in 1971, in volume 21, issue 3, pages 130

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Published in Journal of The Arnold Arboretum, in 1982, in volume 63, issue 1, pages 63-81

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Published in Torreya, in 1904, in volume 4, issue 1, pages 5-8

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Published in Rhodora, in 1959, in volume 61, issue 725, pages 127-136

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Published in The Auk, in 1903, in volume 20, pages 64

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Published in Asa Gray correspondence. Senders J, 1844-1891 (inclusive), in 1870, pages 1-2

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Published in Asa Gray correspondence. Senders J, 1844-1891 (inclusive), in 1880, pages 1-4

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Published in Asa Gray correspondence. Senders J, 1844-1891 (inclusive), in 1880, pages 1-4

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Published in Asa Gray correspondence. Senders J, 1844-1891 (inclusive), in 1881, pages 1-2

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Published in Asa Gray correspondence. Senders J, 1844-1891 (inclusive), in 1882, pages 1-4

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Published in Asa Gray correspondence. Senders J, 1844-1891 (inclusive), in 1882, pages 1-3

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Published in Phytologia, in 1993, in volume 74, pages 428-430

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Published in Phytologia, in 1995, in volume 79, pages 254-256

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Published in Entomological News, in 1964, in volume 75, pages 29-32

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