Published in Biol Bull, in 1953, in volume 105, pages 434-441

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Published in Western Australian Naturalist, in 1961, in volume 8, issue 2, pages 53-56

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Published in Biol Bull, in 1963, in volume 124, pages 84-96

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Published in Biol Bull, in 1962, in volume 122, pages 1-12

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Published in Biol Bull, in 1964, in volume 126, pages 185-198

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in 1940, pages 1-191

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Published in Biol Bull, in 1956, in volume 110, pages 219-228

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Published in Austrobaileya, in 1984, in volume 2, pages 27

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Published in Austrobaileya, in 1990, in volume 3, pages 325-326

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Published in Sida, Contributions To Botany, in 1990, in volume 14, issue 1, pages 134-135

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Published in Botanical Gazette, in 1913, in volume 56, issue 4, pages 346

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Published in Madroño, in 1943, in volume 7, issue 3, pages 85-91

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Published in Sida, Contributions To Botany, in 1996, in volume 17, issue 1, pages 109-110

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Published in Biol Bull, in 1956, in volume 111, pages 358-363

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Published in Madroño, in 1947, in volume 9, issue 1, pages 25-30

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Published in Torreya, in 1933, in volume 33, issue 1, pages 1-3

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Published in Torreya, in 1936, in volume 36, issue 1, pages 1-2

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Published in Biol Bull, in 1965, in volume 128, pages 177-188

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Published in Austrobaileya, in 1990, in volume 3, pages 235-238

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Published in The Wilson Bulletin, in 1994, in volume 106, issue 2, pages 242-257

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Published in American Fern Journal, in 1942, in volume 32, pages 127-138

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Published in Torreya, in 1945, in volume 44, issue 3, pages 59-60

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Published in Torreya, in 1937, in volume 37, issue 4, pages 83-84

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Published in Sida, Contributions To Botany, in 1990, in volume 14, issue 1, pages 87-99

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Published in Rhodora, in 2002, in volume 104, issue 920, pages 429-432

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Published in Palaeontology, in 1985, in volume 28, issue 1, pages 101-109

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Published in Sida, Contributions To Botany, in 1993, in volume 15, issue 4, pages 655-656

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Published in Sida, Contributions To Botany, in 1998, in volume 18, issue 1, pages 241-245

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Published in The Great Basin Naturalist, in 1999, in volume 59, issue 4, pages 339-347

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Published in Madroño, in 1992, in volume 39, issue 2, pages 150-154

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Published in Palaeontology, in 1993, in volume 36, issue 2, pages 439-480

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Published in Sida, Contributions To Botany, in 1991, in volume 14, issue 3, pages 511-512

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Published in Jour Washington Acad Sci, in 1935, in volume 25, pages 451-456

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Published in American Fern Journal, in 1964, in volume 54, pages 73-76

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Published in Biol Bull, in 1964, in volume 126, pages 175-184

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Published in Sida, Contributions To Botany, in 1990, in volume 14, issue 2, pages 311-312

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Published in Palaeontology, in 1963, in volume 6, issue 1, pages 145-147

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Published in Kirtlandia, in 2007, in volume 56, pages 1-37

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Published in The Wilson Bulletin, in 1974, in volume 86, issue 3, pages 272-278

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Published in Madroño, in 1997, in volume 44, issue 2, pages 151-169

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Published in Rhodora, in 1961, in volume 63, issue 745, pages 29-30

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Published in Zoologica New York, in 1947, in volume 32, pages 117-119

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Published in Botanical Gazette, in 1909, in volume 48, issue 1, pages 47-55

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Published in Sida, Contributions To Botany, in 2001, in volume 19, issue 3, pages 731-734

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Published in Sida, Contributions To Botany, in 1972, in volume 5, issue 1, pages 8-22

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Published in Phytologia memoirs, in 1983, in volume 6, pages 1-179

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Published in Botanical Gazette, in 1887, in volume 12, issue 7, pages 153-157

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Published in Madroño, in 1938, in volume 4, issue 6, pages 187-188

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Published in Sida, Contributions To Botany, in 1991, in volume 14, issue 4, pages 615-616

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Published in Phytologia, in 1995, in volume 79, issue 5, pages 346-355

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