Published in The Wilson Bulletin, in 1986, in volume 98, issue 1, pages 126-131
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Published in Journal of Raptor Research, in 2005, in volume 39, issue 4, pages 351-364
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Published in Journal of Raptor Research, in 1988, in volume 22, issue 1, pages 3-7
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Published in Proceedings of The American Philosophical Society, in 1905, in volume 44, issue 179, pages 66-68
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Published in Botanical Gazette, in 1887, in volume 12, issue 3, pages 54-60
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Published in Journal of Raptor Research, in 1998, in volume 32, issue 3, pages 241-245
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Published in Transactions of The San Diego Society of Natural History, in 1973, in volume 17, pages 187-208
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Published in The Wilson Bulletin, in 1959, in volume 71, issue 4, pages 364-371
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Published in Asa Gray correspondence. Senders Ca-Cl, in 1890, pages 1
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Published in Brimleyana, in 1985, in volume 10, pages 37-52
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Published in Torreya, in 1930, in volume 30, issue 4, pages 106-111
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Published in Torreya, in 1939, in volume 39, issue 3, pages 83-86
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Published in Madroño, in 1986, in volume 33, issue 3, pages 217-222
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Published in Rhodora, in 1927, in volume 29, issue 339, pages 33-36
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Published in Transactions of the San Diego Society of Natural History, in 1976, in volume 18, pages 169-183
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Published in Nautilis, in 1902, in volume 16, pages 73-75
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Published in Rhodora, in 1968, in volume 70, issue 783, pages 422-428
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Published in Madroño, in 1986, in volume 33, issue 3, pages 233
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Published in Veliger, in 1962, in volume 5, pages 3-5
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Published in Rhodora, in 1971, in volume 73, issue 795, pages 461
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Published in Annals of the Missouri Botanical Garden, in 1975, in volume 62, pages 664-723
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Published in Rhodora, in 1960, in volume 62, issue 737, pages 127-129
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Published in Rhodora, in 1957, in volume 59, issue 700, pages 98
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Published in Rhodora, in 1954, in volume 56, issue 663, pages 61-62
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Published in Rhodora, in 1959, in volume 61, issue 732, pages 309-311
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Published in Rhodora, in 1959, in volume 61, issue 723, pages 72-76
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Published in Rhodora, in 1958, in volume 60, issue 713, pages 117-122
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Published in Sida, Contributions To Botany, in 1984, in volume 10, issue 3, pages 252
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Published in Journal of Raptor Research, in 1988, in volume 22, issue 2, pages 73
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Published in Botanical Gazette, in 1922, in volume 73, issue 6, pages 469-485
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Published in Proceedings of the Biological Society of Washington, in 1976, in volume 89, pages 477-480
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Published in Brimleyana, in 1993, in volume 18, pages 59-64
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Published in Sida, Contributions To Botany, in 1983, in volume 10, issue 2, pages 190-191
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