Authors: O Ruth Spencer

Published in The Wilson Bulletin, in 1943, in volume 55, issue 1, pages 11-22

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Authors: Ruth Hoppin

in 1888, pages 1-2

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Authors:

Published in Madroño, in 1941, in volume 6, issue 3, pages 82-84

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Authors: Spencer F Baird

Published in Asa Gray correspondence. Senders Gr-Gu, 1839-1890 (inclusive), pages 1

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Authors: Spencer F Baird | John James Audubon

Published in The Auk, in 1906, in volume 23, pages 194-209

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Authors: John James Audubon | Spencer F Baird

Published in The Auk, in 1906, in volume 23, pages 318-334

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Authors: John James Audubon | Spencer F Baird

Published in The Auk, in 1907, in volume 24, pages 53-70

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Authors: John James Audubon | Spencer F Baird

Published in The Auk, in 1904, in volume 21, pages 255-259

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Authors: Ruth Ginsburg

Published in Sida, Contributions To Botany, in 2003, in volume 20, issue 4, pages 1662

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Authors: Ruth Ginsburg

Published in Sida, Contributions To Botany, in 2003, in volume 20, issue 3, pages 944

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Authors: Ruth Ginsburg

Published in Sida, Contributions To Botany, in 2003, in volume 20, issue 3, pages 952

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Authors: Ruth Peabody

Published in Rhodora, in 1934, in volume 36, issue 430, pages 376

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Authors: Robert Ridgway

Published in The Auk, in 1888, in volume 5, pages 1-14

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Authors: O W Richards

Published in Fieldiana, Zool., in 1965, in volume 44, pages 141-149

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Authors: Ruth A Hoerl

Published in Madroño, in 1939, in volume 5, issue 2, pages 75-77

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Authors: Spencer Tinker

Published in Pacific Science, in 1949, in volume 3, issue 4, pages 302-306

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Authors: Spencer Trotter

Published in The Auk, in 1904, in volume 21, pages 55-64

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Authors: Review By: Ruth Ginsburg

Published in Sida, Contributions To Botany, in 2003, in volume 20, issue 4, pages 1362

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Authors: Walter Mendelson | Ruth Marshall

Published in American Fern Journal, in 1917, in volume 7, pages 63-66

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Authors: Ruth Ginsburg | John Sturat

Published in Sida, Contributions To Botany, in 2001, in volume 19, issue 4, pages 898

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Authors: Ruth Ginsburg | Barney Lipscomb

Published in Sida, Contributions To Botany, in 2003, in volume 20, issue 3, pages 1042

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Authors: Review By: Ruth Ginsburg

Published in Sida, Contributions To Botany, in 2004, in volume 21, issue 2, pages 552

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Authors: Review By: Ruth Ginsburg

Published in Sida, Contributions To Botany, in 2006, in volume 22, issue 1, pages 196

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Authors: Ruth A Stockey

Published in Palaeontology, in 1980, in volume 23, issue 3, pages 657-666

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Authors: Ruth Rossbach

Published in Rhodora, in 1940, in volume 42, issue 495, pages 57-83

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Authors: Ruth Rossbach

Published in Rhodora, in 1940, in volume 42, issue 498, pages 203-213

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Authors: Edwin Rollin Spencer

Published in Botanical Gazette, in 1921, in volume 72, issue 5, pages 265-292

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Authors: A Spencer Tomb

Published in Madroño, in 1972, in volume 21, issue 7, pages 459-462

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Authors: Ruth Marshall

Published in Transactions of The American Microscopical Society, in 1912, in volume 31, pages 225-230

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Authors: Ruth Kiew

Published in Gardens' Bulletin Singapore, in 1989, in volume 42, issue 1, pages 47-64

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Authors: Ruth Holden

Published in Botanical Gazette, in 1915, in volume 60, issue 3, pages 215-227

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Authors: Guy L Nesom | Ruth Ginsburg

Published in Sida, Contributions To Botany, in 2002, in volume 20, issue 2, pages 514

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Authors: Ruth Rossbach

Published in Rhodora, in 1940, in volume 42, issue 497, pages 158-193

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Authors: Ruth Rossbach

Published in Rhodora, in 1940, in volume 42, issue 496, pages 105-143

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Authors: H F Glen

Published in Bothalia, in 1998, in volume 28, issue 2, pages 239-241

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Authors: Ruth B Howland

Published in Biol Bull, in 1928, in volume 54, pages 279-288

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Authors: Ruth Desqueyoux P

Published in Gayana (Zool), in 1972, in volume 20, pages 1-71

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Authors: Ruth Kiew

Published in Novon, in 1995, in volume 5, pages 40-41

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Authors: Ruth Dowell Svihla

Published in Pan-Pacific Entomologist, in 1942, in volume 18, pages 133-135

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Authors: Ruth Trimble

Published in The Wilson Bulletin, in 1936, in volume 48, issue 1, pages 41-47

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Authors: L B Spencer

Published in Phytologia, in 1986, in volume 59, pages 85-88

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Authors: R Spencer

Published in Muelleria, in 1992, in volume 7, issue 4, pages 555

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Authors: F Udovicic | R D Spencer

Published in Muelleria, in 2012, in volume 30, issue 1, pages 23-25

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Authors: Spencer Trotter

Published in The Auk, in 1912, in volume 29, pages 159-165

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Authors: Spencer Trotter

Published in The Auk, in 1912, in volume 29, pages 255-256

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Authors: Barney Lipscomb | Ruth Ginsburg | Karen M Foley

Published in Sida, Contributions To Botany, in 2003, in volume 20, issue 4, pages 1773-1778

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Authors: Ruth D Turner

Published in Occasional papers on mollusks, in 1958, in volume 2, issue 22, pages 153-178

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Authors: Ruth Marshall

Published in Transactions of The American Microscopical Society, in 1910, in volume 29, pages 97-110

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Authors: Ruth Mawson

Published in Palaeontology, in 1987, in volume 30, issue 2, pages 251-297

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Authors: Ruth Harris Thomas

Published in The Wilson Bulletin, in 1946, in volume 58, issue 3, pages 143-183

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