Published in Veliger, in 1960, in volume 3, pages 32
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Published in Sida, Contributions To Botany, in 1988, in volume 13, issue 1, pages 117-118
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Published in Journal of The Botanical Research Institute of Texas, in 2007, in volume 1, issue 1, pages 457-481
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Published in Madroño, in 1952, in volume 11, issue 5, pages 217-220
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Published in The Auk, in 1912, in volume 29, pages 244
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Published in Palaeontology, in 1997, in volume 40, issue 1, pages 99-112
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Published in Palaeontology, in 1995, in volume 37, issue 4, pages 781-799
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Published in The Auk, in 1916, in volume 33, pages 187-193
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Published in Madroño, in 1987, in volume 34, issue 4, pages 381-382
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Published in The Auk, in 1920, in volume 37, pages 601-603
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Published in Palaeontology, in 1996, in volume 39, issue 1, pages 97-147
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Published in The Wilson Bulletin, in 1984, in volume 96, issue 4, pages 561-574
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Published in Sida, Contributions To Botany, in 2003, in volume 20, issue 4, pages 1727-1730
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Published in Nautilis, in 1909, in volume 22, pages 128-133
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Published in Botanical Museum Leaflets, Harvard University, in 1949, in volume 13, pages 213-247
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Published in Journal of The New York Entomological Society, in 1931, in volume 39, issue 3, pages 295-298
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Published in Nautilis, in 1936, in volume 49, pages 135-139
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Published in Nautilis, in 1936, in volume 50, pages 20-22
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Published in Nautilis, in 1913, in volume 27, pages 4-6
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Published in Great Basin Naturalist, in 1975, in volume 35, pages 109-112
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Published in The Auk, in 1911, in volume 28, pages 113
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Published in Bulletin du Muséum national d'histoire naturelle, in 1919, in volume 25, issue 7, pages 566
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Published in Nautilis, in 1913, in volume 27, pages 16-17
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Published in Zoologica, in 1927, in volume 9, issue 6, pages 271-294
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Published in Austrobaileya, in 2010, in volume 8, issue 2, pages 133-138
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Published in University of Kansas Science Bulletin, in 1952, in volume 34, pages 679-694
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Published in Bull. Zool. Nom., in 1954, in volume 9, pages 247-249
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Published in Great Basin Naturalist, in 1974, in volume 34, pages 231-237
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Published in Annals And Magazine of Natural History, in 1894, in volume 14, pages 236
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Published in Madroño, in 1988, in volume 35, issue 4, pages 320-324
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Published in Proc. Biol. Soc. Wash, in 1939, in volume 52, pages 187-196
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Published in Nautilis, in 1927, in volume 41, pages 51-54
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Published in Nautilis, in 1940, in volume 54, pages 44-46
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Published in Nautilis, in 1943, in volume 57, pages 59-62
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Published in Nautilis, in 1910, in volume 24, pages 81-83
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Published in Proc. Biol. Soc. Washington, in 1951, in volume 64, pages 97-100
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Published in Proceedings of The Biological Society of Washington, in 1951, in volume 64, pages 101-103
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Published in Bull. Zool. Nom., in 1963, in volume 20, pages 121-127
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Published in Bulletin de la Société Botanique de France, in 1871, in volume 18, pages 341-354
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Published in The Great Basin Naturalist, in 1942, in volume 3, pages 57-58
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Published in Madroño, in 1989, in volume 36, issue 4, pages 260-265
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Published in Biol Bull, in 1990, in volume 178, pages 126-136
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Published in Proc. Biol. Soc. Washington, in 1940, in volume 53, pages 55-64
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Published in Sida, Contributions To Botany, in 1996, in volume 17, issue 2, pages 413-415
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Published in Proceedings of The Linnean Society of New South Wales, in 2019, in volume 136, pages 35-68
Created: 2019-09-16, modified: 2019-09-16
Published in The Auk, in 1885, in volume 2, pages 385
Created: 2013-03-07, modified: 2013-03-08
Published in Nautilis, in 1911, in volume 24, pages 101-103
Created: 2013-09-28, modified: 2013-09-28
Published in Nautilis, in 1911, in volume 25, pages 56-57
Created: 2013-09-28, modified: 2013-09-28
Published in Gardens' Bulletin Singapore, in 1956, in volume 15, pages 285-376
Created: 2018-12-17, modified: 2018-12-17
Published in Zoologica, in 1937, in volume 22, issue 20, pages 293-296
Created: 2016-11-07, modified: 2016-11-07