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Published in Madroño, in 1957, in volume 14, issue 3, pages 106-108

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Published in Madroño, in 1973, in volume 22, issue 4, pages 214

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Published in Madroño, in 1962, in volume 16, issue 7, pages 224-228

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Published in Phytologia, in 1975, in volume 30, issue 1, pages 1-4

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Published in Madroño, in 1962, in volume 16, issue 8, pages 269-272

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Published in Madroño, in 1974, in volume 22, issue 8, pages 408-409

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Published in Madroño, in 1977, in volume 24, issue 3, pages 141-159

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Published in Madroño, in 1977, in volume 24, issue 4, pages 227-235

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Published in Madroño, in 1979, in volume 26, issue 1, pages 48-50

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Published in Phytologia, in 1980, in volume 47, issue 2, pages 85-87

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Published in Phytologia, in 1980, in volume 45, issue 6, pages 496-500

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Published in Transactions of the San Diego Society of Natural History, in 1969, in volume 15, issue 17, pages 265-295

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Published in Proceedings of the California Academy of Sciences, in 1986, in volume 44, pages 111-126

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Published in Madroño, in 1976, in volume 23, issue 6, pages 362-364

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Published in Fieldiana: Botany, New Series, in 1991, in volume 27, pages 42-46

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Published in American Fern Journal, in 1982, in volume 72, pages 93-95

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Published in Western Australian Naturalist, in 1979, in volume 14, issue 5, pages 120-121

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Published in Ibis, in 1885, in volume 3, issue 3, pages 241-255

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Published in Great Basin Naturalist, in 1972, in volume 32, pages 235-237

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Published in Ibis, in 1888, in volume 6, issue 1, pages 73-83

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Published in Rhodora, in 1984, in volume 86, issue 846, pages 237-238

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Published in American Fern Journal, in 1987, in volume 77, pages 124-130

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Published in Phytologia, in 1982, in volume 52, pages 221-226

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Published in Proceedings of The American Philosophical Society, in 1909, in volume 48, issue 192, pages 303-312

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Published in Botanical Gazette, in 1891, in volume 16, issue 7, pages 205-207

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Published in Phytologia, in 2006, in volume 88, pages 97-99

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Published in Entomologist's Record and Journal of Variation, in 2006, in volume 118, issue 3, pages 123-125

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Published in Annals of the Missouri Botanical Garden, in 1990, in volume 77, pages 591-593

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