Published in Pacific Science, in 1957, in volume 11, issue 3, pages 265-274
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Published in Pacific Science, in 1953, in volume 7, issue 4, pages 504-512
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Published in Pacific Science, in 1966, in volume 20, issue 4, pages 435-444
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Published in Botanical Gazette, in 1916, in volume 61, issue 6, pages 538
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Published in Jour Washington Acad Sci, in 1941, in volume 31, pages 509-515
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Published in Rhodora, in 1934, in volume 36, pages 407-8
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Published in Proceedings of The United States National Museum, in 1958, in volume 108, pages 137-179
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Published in The Wilson Bulletin, in 1898, in volume 10, issue 4, pages 69
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Published in Madroño, in 1941, in volume 6, issue 1, pages 29-30
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Published in Madroño, in 1973, in volume 22, issue 2, pages 71-73
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Published in Madroño, in 1977, in volume 24, issue 2, pages 78-83
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Published in Annals of the Missouri Botanical Garden, in 1928, in volume 15, pages 91-108
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Published in Annals of the Missouri Botanical Garden, in 1929, in volume 16, pages 393-398
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Published in Annals of the Missouri Botanical Garden, in 1932, in volume 19, pages 497-498
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Published in Annals of the Missouri Botanical Garden, in 1965, in volume 52, pages 387-398
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Published in Madroño, in 2013, in volume 60, pages 325-329
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Published in Botanical Gazette, in 1916, in volume 61, issue 6, pages 453-476
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Published in Madroño, in 1942, in volume 6, issue 5, pages 145-151
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Published in Madroño, in 1960, in volume 15, issue 7, pages 193-197
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Published in Annals of the Missouri Botanical Garden, in 1938, in volume 25, pages 225-297
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Published in American Fern Journal, in 1960, in volume 50, pages 55-62
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Published in Botanical Gazette, in 1918, in volume 66, issue 2, pages 143-161
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Published in Biol Bull, in 1918, in volume 35, pages 199-206
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Published in Madroño, in 1943, in volume 7, issue 3, pages 65-67
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Published in Journal of The Straits Branch of The Royal Asiatic Society, in 1912, in volume 62, pages 24-25
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Published in The Wilson Bulletin, in 1938, in volume 50, issue 1, pages 13-17
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Published in Biol Bull, in 1947, in volume 93, pages 250-258
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Published in Contributions from the University of Michigan Herbarium, in 1973, in volume 11, issue 1, pages 1-24
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Published in The Wilson Bulletin, in 1913, in volume 25, issue 2, pages 90-91
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Published in Jour Washington Acad Sci, in 1944, in volume 34, pages 132-133
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Published in Proceedings of The American Philosophical Society, in 1919, in volume 58, issue 220, pages 382-385
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Published in Madroño, in 1943, in volume 7, issue 1, pages 31
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Published in The Wilson Bulletin, in 1945, in volume 57, issue 1, pages 86
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Published in Madroño, in 1969, in volume 20, issue 4, pages 214-219
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Published in Journal of The Arnold Arboretum, in 1977, in volume 58, issue 2, pages 190-192
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Published in Madroño, in 2001, in volume 48, issue 2, pages 112-115
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Published in The Wilson Bulletin, in 1971, in volume 83, issue 1, pages 34
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Published in The Wilson Bulletin, in 1912, in volume 24, issue 2, pages 111-114
Created: 2016-11-27, modified: 2016-11-27
Published in The Wilson Bulletin, in 1925, in volume 37, issue 4, pages 244-247
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Published in The Great Basin Naturalist, in 1999, in volume 59, issue 4, pages 301-314
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Published in The Wilson Bulletin, in 1901, in volume 13, issue 4, pages 9-10
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Published in The Wilson Bulletin, in 1969, in volume 81, issue 2, pages 232
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Published in The Wilson Bulletin, in 1926, in volume 38, issue 1, pages 43-44
Created: 2016-11-27, modified: 2016-11-27
Published in The Wilson Bulletin, in 1931, in volume 43, issue 3, pages 173-176
Created: 2016-11-27, modified: 2016-11-27
Published in The Wilson Bulletin, in 1956, in volume 68, issue 3, pages 264-266
Created: 2016-12-04, modified: 2016-12-04
Published in The Wilson Bulletin, in 1960, in volume 72, issue 3, pages 244-247
Created: 2016-12-04, modified: 2016-12-04
Published in The Wilson Bulletin, in 1961, in volume 73, issue 3, pages 262-267
Created: 2016-12-04, modified: 2016-12-04
Published in The Wilson Bulletin, in 1941, in volume 53, issue 3, pages 169-180
Created: 2016-12-11, modified: 2016-12-11
Published in The Wilson Bulletin, in 1941, in volume 53, issue 1, pages 31-32
Created: 2016-12-11, modified: 2016-12-11
Published in The Wilson Bulletin, in 1928, in volume 40, issue 3, pages 196
Created: 2016-11-27, modified: 2016-11-27