Published in Rhodora, in 1960, in volume 62, issue 736, pages 116

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Published in Rhodora, in 1960, in volume 62, issue 736, pages 93-95

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Published in Rhodora, in 1972, in volume 74, issue 799, pages 378-388

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Published in Phytologia, in 1984, in volume 55, issue 4, pages 227-228

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Published in Rhodora, in 1961, in volume 63, issue 749, pages 146-148

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Published in The University of Kansas Science Bulletin, in 1955, in volume 37, issue 1, pages 55-141

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Published in Sida, Contributions To Botany, in 1998, in volume 18, issue 2, pages 593-604

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Published in Sida, Contributions To Botany, in 2003, in volume 20, issue 3, pages 1289-1297

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Published in Journal of The Botanical Research Institute of Texas, in 2007, in volume 1, issue 1, pages 753-761

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Published in Phytologia, in 1984, in volume 55, issue 4, pages 256

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Published in American Fern Journal, in 1950, in volume 40, issue 3, pages 201

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Published in The Auk, in 1903, in volume 20, pages 319

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Published in The Auk, in 1918, in volume 35, pages 370

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Published in Madroño, in 1988, in volume 35, issue 1, pages 70-71

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Published in Psyche, in 1918, in volume 25, pages 46

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Published in Entomological News, in 1912, in volume 23, pages 305-306

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Published in Victorian Naturalist, in 2008, in volume 125, issue 1, pages 4-10

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Published in The Auk, in 1893, in volume 10, pages 205-206

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Published in Rhodora, in 1979, in volume 81, issue 826, pages 283-284

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Published in Sida, Contributions To Botany, in 1992, in volume 15, issue 1, pages 165-166

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Published in The Auk, in 1898, in volume 15, pages 264-265

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Published in American Malacological Bulletin, in 2014, in volume 32, issue 2, pages 220-222

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Published in Rhodora, in 1981, in volume 83, issue 833, pages 147-148

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Published in Rhodora, in 1967, in volume 69, issue 780, pages 460-465

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Published in Sida, Contributions To Botany, in 1983, in volume 10, issue 1, pages 41-81

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Published in Sida, Contributions To Botany, in 2003, in volume 20, issue 3, pages 1335-1338

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Published in Sida, Contributions To Botany, in 2006, in volume 22, issue 1, pages 33-49

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Published in Madroño, in 2007, in volume 54, pages 329-333

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Published in The Auk, in 1910, in volume 27, pages 237-238

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Published in The Auk, in 1898, in volume 15, pages 187

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Published in Biol Bull, in 1970, in volume 138, pages 247-261

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Published in Sida, Contributions To Botany, in 1966, in volume 2, issue 5, pages 361-376

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Published in Rhodora, in 1970, in volume 72, issue 790, pages 164-181

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Published in The Great Basin Naturalist, in 1986, in volume 46, issue 2, pages 294-298

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Published in Sida, Contributions To Botany, in 2004, in volume 21, issue 2, pages 753-754

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Published in Madroño, in 1988, in volume 35, issue 2, pages 121-125

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Published in Entomological News, in 1917, in volume 28, pages 433-437

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Published in The Auk, in 1920, in volume 37, pages 471-472

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Published in Palaeontology, in 1960, in volume 3, issue 1, pages 26-44

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Published in Ibis, in 1917, in volume 5, issue 1, pages 1-30

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Published in Journal of The Botanical Research Institute of Texas, in 2014, in volume 8, issue 2, pages 677-678

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Published in Biol Bull, in 1966, in volume 131, pages 272-291

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Published in Sida, Contributions To Botany, in 1966, in volume 2, issue 6, pages 409-418

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Published in Rhodora, in 1993, in volume 95, issue 881, pages 79-81

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Published in The Great Basin Naturalist, in 1984, in volume 44, pages 482-483

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Published in The Great Basin Naturalist, in 1985, in volume 45, issue 3, pages 548-550

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Published in Sida, Contributions To Botany, in 2000, in volume 19, issue 2, pages 407-410

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Published in Sida, Contributions To Botany, in 2004, in volume 21, issue 1, pages 237-241

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Published in The Wilson Bulletin, in 1978, in volume 90, issue 2, pages 215-220

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Published in Annals of the Entomological Society of America, in 1914, in volume 7, pages 354-365

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