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Published in Madroño, in 1940, in volume 5, issue 5, pages 163-164

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Published in Breviora, in 1960, in volume 116, pages 1-11

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Published in Bulletin of The Museum of Comparative Zoology, in 1961, in volume 125, pages 471-494

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Published in Torreya, in 1943, in volume 43, issue 2, pages 155-169

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Published in Phytologia, in 1982, in volume 50, issue 4, pages 286-288

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Published in Phytologia, in 1969, in volume 18, issue 4, pages 212

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Published in Bull Brit Ornithol Club, in 1961, in volume 81, pages 28-29

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Published in Journal of The Bombay Natural History Society, in 1983, in volume 80, issue 1, pages 209-210

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Published in Biol Bull, in 1993, in volume 185, pages 428-439

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Published in Torreya, in 1917, in volume 17, issue 5, pages 84-85

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Published in Phytologia, in 1982, in volume 50, pages 279-285

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Published in Proceedings of The Entomological Society of Washington, in 1979, in volume 81, pages 694-696

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Published in The Auk, in 1910, in volume 27, pages 226-227

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Published in Phytologia, in 1968, in volume 17, pages 249-328,

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Published in Rhodora, in 1998, in volume 100, issue 901, pages 96

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Published in Great Basin Naturalist, in 1995, in volume 55, pages 368-371

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Published in Rhodora, in 1939, in volume 41, issue 489, pages 385-461

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Published in Veliger, in 1976, in volume 19, pages 1-3

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Published in Proceedings of The Biological Society of Washington, in 1998, in volume 111, pages 473-503

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Published in Entomologist's Record and Journal of Variation, in 1991, in volume 103, issue 11-12, pages 301-306

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Published in PHYTOLOGIA, in 1965, in volume 12, issue 7, pages 414-426

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Published in Madroño, in 1946, in volume 8, issue 6, pages 193-195

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Published in Brigham Young University science bulletin, in 1975, in volume 20, issue 1, pages 1-42

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Published in Phytologia, in 1990, in volume 69, pages 119-121

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Published in The Wilson Bulletin, in 1999, in volume 111, issue 3, pages 346-353

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Published in Anales de la Universidad de Chile, in 1871, in volume 39, pages 197-198

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Published in Rhodora, in 1939, in volume 41, issue 489, pages 392-415

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Published in Rhodora, in 1956, in volume 58, issue 690, pages 148-157

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Published in Rhodora, in 1960, in volume 62, issue 741, pages 242-244

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Published in Rhodora, in 1952, in volume 54, issue 642, pages 161-163

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Published in Rhodora, in 1951, in volume 53, issue 626, pages 56-61

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Published in Rhodora, in 1940, in volume 42, issue 500, pages 302-306

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Published in Rhodora, in 1961, in volume 63, issue 752, pages 223-225

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Published in Botanical Gazette, in 1892, in volume 17, issue 10, pages 330

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Published in Botanical Gazette, in 1894, in volume 19, issue 8, pages 336-337

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Published in Madroño, in 1936, in volume 3, issue 8, pages 359-362

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Published in Torreya, in 1915, in volume 15, issue 11, pages 246-247

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Published in British Journal of Entomology And Natural History, in 1990, in volume 3, pages 192

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Published in Madroño, in 2008, in volume 55, pages 216-222

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Published in Madroño, in 1987, in volume 34, issue 3, pages 193-208

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Published in Rhodora, in 1961, in volume 63, issue 745, pages 1-10

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Published in Rhodora, in 1953, in volume 55, issue 655, pages 229-235

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Published in Phytologia, in 1970, in volume 19, issue 5, pages 311-312

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Published in Rhodora, in 1956, in volume 58, issue 687, pages 72

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Published in Rhodora, in 1956, in volume 58, issue 687, pages 73-76

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Published in Rhodora, in 1962, in volume 64, issue 757, pages 1-2

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Published in Rhodora, in 1964, in volume 66, issue 766, pages 97-99

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Published in Torreya, in 1916, in volume 16, issue 6, pages 125-130

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Published in Phytologia, in 1965, in volume 12, pages 369-400

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