Published in Sida, Contributions To Botany, in 1994, in volume 16, issue 2, pages 373-374

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Published in Sida, Contributions To Botany, in 2006, in volume 22, issue 2, pages 873-886

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Published in Journal of The Botanical Research Institute of Texas, in 2011, in volume 5, issue 1, pages 9-18

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in 1882, pages 1-4

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in 1882, pages 1-2

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in 1884, pages 1-2

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Published in The Auk, in 1912, in volume 29, pages 16-23

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Published in The Auk, in 1917, in volume 34, pages 99

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Published in The Auk, in 1896, in volume 13, pages 75

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Published in The Auk, in 1884, in volume 1, pages 184

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Published in The Auk, in 1907, in volume 24, pages 451-452

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Published in Entomologist's Record and Journal of Variation, in 1995, in volume 107, issue 5-6, pages 155

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Published in The Auk, in 1909, in volume 26, pages 201

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Published in Madroño, in 2008, in volume 55, pages 88-89

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Published in The Auk, in 1906, in volume 23, pages 194-209

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Published in The Auk, in 1906, in volume 23, pages 318-334

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Published in The Auk, in 1907, in volume 24, pages 53-70

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Published in The Auk, in 1904, in volume 21, pages 255-259

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Published in The Auk, in 1920, in volume 37, pages 380-393

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Published in The Auk, in 1917, in volume 34, pages 133-146

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Published in The Auk, in 1918, in volume 35, pages 182-185

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Published in The Auk, in 1919, in volume 36, pages 627

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Published in Zoologica, in 1914, in volume 1, issue 16, pages 289-299

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Published in Madroño, in 1952, in volume 11, issue 5, pages 203-206

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Published in The Auk, in 1918, in volume 35, pages 405-416

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Published in The Auk, in 1913, in volume 30, pages 1-10

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Published in The Auk, in 1911, in volume 28, pages 129-130

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Published in The Auk, in 1916, in volume 33, pages 286-292

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Published in Botanical Gazette, in 1900, in volume 30, issue 5, pages 347-348

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Published in Journal of The New York Entomological Society, in 1898, in volume 6, pages 165-180

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Published in Insecutor Inscitiae Menstruus, in 1917, in volume 5, pages 157-164

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Published in Entomological News, in 1916, in volume 27, pages 178

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Published in The Auk, in 1920, in volume 37, pages 582-583

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Published in The Auk, in 1903, in volume 20, pages 218-219

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Published in The Auk, in 1919, in volume 36, pages 424-426

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Published in The Auk, in 1907, in volume 24, pages 452-453

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Published in Rhodora, in 1916, in volume 18, issue 213, pages 185-188

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Published in Botanical Gazette, in 1880, in volume 5, issue 8/9, pages 90

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Published in Proceedings of The American Philosophical Society, in 1873, in volume 13, issue 81, pages 183-190

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Published in Annals and Magazine of Natural History, in 1901, in volume 7, pages 261-263

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Published in Proceedings of the Malacological Society of London, in 1895, in volume 1, issue 6, pages 278-280

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Published in Palaeontology, in 1979, in volume 22, issue 3, pages 513-535

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Published in Madroño, in 1990, in volume 37, issue 3, pages 216-218

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Published in Proc. Ent. Soc. Wash, in 1915, in volume 17, pages 107-114

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Published in The Auk, in 1920, in volume 37, pages 596-597

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Published in The Auk, in 1885, in volume 2, pages 106

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Published in Zoologica, in 1929, in volume 9, issue 9, pages 321-378

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Published in Zoologica, in 1912, in volume 1, issue 8, pages 157-173

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Published in Rhodora, in 1983, in volume 85, issue 841, pages 115-122

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