Published in Proceedings of The United States National Museum, in 1926, in volume 70, pages 1-22
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Published in Phytologia, in 1966, in volume 12, issue 8, pages 477
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Published in Madroño, in 1970, in volume 20, issue 7, pages 346-347
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Published in Palaeontology, in 1969, in volume 12, issue 3, pages 488-493
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Published in Asa Gray correspondence. Senders Be-Bo, in 1859, pages 1-2
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Published in Asa Gray correspondence. Senders Be-Bo, in 1864, pages 1-2
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Published in Asa Gray correspondence. Senders Be-Bo, in 1864, pages 1-2
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Published in Asa Gray correspondence. Senders Be-Bo, in 1849, pages 1-2
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Published in Asa Gray correspondence. Senders Be-Bo, in 1849, pages 1-2
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Published in Asa Gray correspondence. Senders Be-Bo, in 1852, pages 1-2
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Published in Asa Gray correspondence. Senders Be-Bo, in 1866, pages 1-2
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Published in Asa Gray correspondence. Senders Be-Bo, in 1866, pages 1-2
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Published in Asa Gray correspondence. Senders Be-Bo, in 1866, pages 1-2
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Published in Asa Gray correspondence. Senders Be-Bo, in 1854, pages 1-2
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Published in Asa Gray correspondence. Senders Be-Bo, in 1848, pages 1-3
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Published in Asa Gray correspondence. Senders Be-Bo, in 1849, pages 1-2
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Published in Asa Gray correspondence. Senders Be-Bo, in 1864, pages 1-2
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Published in Asa Gray correspondence. Senders Be-Bo, in 1864, pages 1-2
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Published in Asa Gray correspondence. Senders Be-Bo, in 1870, pages 1-2
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Published in Rhodora, in 1962, in volume 64, issue 758, pages 161-168
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Published in Madroño, in 1941, in volume 6, issue 1, pages 18-20
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Published in Palaeontology, in 1973, in volume 16, issue 4, pages 651-663
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Published in Rhodora, in 1901, in volume 3, issue 31, pages 191-193
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Published in Asa Gray correspondence. Senders Be-Bo, in 1853, pages 1-2
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Published in Asa Gray correspondence. Senders Be-Bo, in 1844, pages 1-6
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Published in Asa Gray correspondence. Senders Be-Bo, in 1844, pages 1-2
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Published in Psyche: A Journal of Entomology, in 1897, in volume 8, issue 249, pages 1-5
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Published in Phytologia, in 1973, in volume 26, pages 485-486
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Published in Nautilus, in 2011, in volume 125, issue 2, pages 83-85
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Published in Rhodora, in 1904, in volume 6, issue 66, pages 146-147
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Published in Rhodora, in 1956, in volume 58, issue 696, pages 344-354
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Published in Botanical Gazette, in 1886, in volume 11, issue 3, pages 64
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Published in Palaeontology, in 1982, in volume 25, issue 1, pages 1-9
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Published in Torreya, in 1932, in volume 32, issue 5, pages 116-118
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Published in Psyche: A Journal of Entomology, in 1972, in volume 79, issue 4, pages 328-334
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Published in Psyche: A Journal of Entomology, in 1976, in volume 83, issue 2, pages 185-191
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Published in Madroño, in 1947, in volume 9, issue 4, pages 133-135
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Published in PHYTOLOGIA, in 1967, in volume 15, issue 3, pages 162
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Published in Nuytsia, in 1972, in volume 1, issue 3, pages 218-241
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Published in Nuytsia, in 1986, in volume 5, issue 3, pages 401-406
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Published in Rhodora, in 1899, in volume 1, issue 10, pages 182-185
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Published in Annals of the Missouri Botanical Garden, in 1971, in volume 58, pages 261
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Published in Psyche: A Journal of Entomology, in 1972, in volume 79, issue 3, pages 231-235
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Published in Nuytsia, in 1983, in volume 4, issue 3, pages 275-278
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Published in Botanical Gazette, in 1880, in volume 5, issue 4, pages 46-48
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Published in Palaeontology, in 1995, in volume 38, issue 4, pages 815-829
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Published in Psyche: A Journal of Entomology, in 1973, in volume 80, issue 1-2, pages 83-89
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Published in Psyche: A Journal of Entomology, in 1969, in volume 76, issue 3, pages 362-366
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Published in Psyche: A Journal of Entomology, in 1986, in volume 93, issue 1-2, pages 133-139
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Published in Biol Bull, in 1935, in volume 68, pages 4-6
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