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Published in Western Australian Naturalist, in 2010, in volume 27, issue 3, pages 184-191
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Published in The Victorian Naturalist, in 1976, in volume 93, issue January/February, pages 21-24
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Published in Serket, in 1991, in volume 2, issue 3, pages 62-69
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Published in Rhodora, in 1994, in volume 96, issue 886, pages 179-189
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Published in Biol Bull, in 1964, in volume 127, pages 256-270
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Published in Annals of the Missouri Botanical Garden, in 1966, in volume 53, pages 1-16
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Published in Bulletin of The African Bird Club, in 1998, in volume 5, issue 2, pages 94-95
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Published in Asa Gray correspondence. Senders Ca-Cl, in 1845, pages 1-3
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Published in Asa Gray correspondence. Senders Ca-Cl, in 1845, pages 1-3
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Published in Asa Gray correspondence. Senders Ca-Cl, in 1846, pages 1-2
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Published in Asa Gray correspondence. Senders Ca-Cl, in 1846, pages 1-2
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Published in Asa Gray correspondence. Senders Ca-Cl, in 1848, pages 1-3
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Published in Hedwigia, in 1896, in volume 35, pages 34-42
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Published in The Flowering Plants of Africa, in 1947, in volume 26, pages 1-2
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Published in The Wilson Bulletin, in 1983, in volume 95, issue 1, pages 1-6
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Published in Journal of The Straits Branch of The Royal Asiatic Society, in 1911, in volume 57, pages 171-181
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Published in Rhodora, in 1955, in volume 57, issue 684, pages 337-338
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Published in South Australian Naturalist, in 1931, in volume 12, issue 4, pages 63
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Published in American Fern Journal, in 1960, in volume 50, pages 107-109
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Published in Hedwigia, in 1892, in volume 31, pages 11-27
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Published in Hedwigia, in 1886, in volume 25, pages 49-87
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Published in Hedwigia, in 1895, in volume 34, pages 313-318
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Published in Rhodora, in 1953, in volume 55, issue 651, pages 101-102
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Published in Proceedings of the Entomological Society of Washington, in 2006, in volume 108, pages 237-239
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Published in Adansonia, in 1966, in volume 6, issue 4, pages 593-641
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Published in Rhodora, in 1953, in volume 55, issue 650, pages 55-57
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Published in Rhodora, in 1913, in volume 15, issue 180, pages 225
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Published in Madroño, in 1950, in volume 10, issue 5, pages 159
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Published in The Wilson Bulletin, in 1993, in volume 105, issue 1, pages 114-141
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Published in Western Australian Naturalist, in 1954, in volume 4, issue 4, pages 83-84
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Published in American Fern Journal, in 1952, in volume 42, pages 131-133
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Published in Botanical Gazette, in 1921, in volume 72, issue 6, pages 407-408
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Published in Hedwigia, in 1894, in volume 33, pages 11-14
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Published in Rhodora, in 1967, in volume 69, issue 780, pages 451-455
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COMPARATIVE SUCCESSIONAL ROLES OF TREMBLING ASPEN AND LODGEPOLE PINE IN THE SOUTHERN ROCKY MOUNTAINS
Published in The Great Basin Naturalist, in 1983, in volume 43, pages 447-455
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Published in Ibis, in 1888, in volume 6, issue 2, pages 217
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Published in Madroño, in 1995, in volume 42, issue 3, pages 419
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Published in The Victorian Naturalist, in 1996, in volume 113, issue 4, pages 198-207
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Published in Adansonia, in 1975, in volume 15, issue 2, pages 257-271
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Published in Glasgow Naturalist, in 1996, in volume 23, issue 1, pages 14-40
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Published in The Wilson Bulletin, in 1944, in volume 56, issue 2, pages 83-90
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Published in Madroño, in 2007, in volume 54, pages 234-248
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