Authors: Robert T Clausen

Published in Torreya, in 1939, in volume 39, issue 1, pages 1-9

Created: 2022-12-14, modified: 2022-12-14

Authors: Robert T Clausen

Published in Torreya, in 1941, in volume 41, issue 5, pages 161-162

Created: 2022-12-12, modified: 2022-12-12

Authors: Robert T Clausen

Published in Rhodora, in 1951, in volume 53, issue 628, pages 109-111

Created: 2014-06-16, modified: 2023-02-16

Authors: Robert T Clausen

Published in Torreya, in 1945, in volume 45, issue 3, pages 65-67

Created: 2022-12-12, modified: 2022-12-12

Authors: Robert T Clausen

Published in Rhodora, in 1937, in volume 39, issue 467, pages 432

Created: 2016-07-19, modified: 2023-02-16

Authors: Robert T Clausen

Published in Torreya, in 1939, in volume 39, issue 5, pages 125-133

Created: 2022-12-14, modified: 2022-12-14

Authors: Robert T Clausen | Herbert A Wahl

Published in Rhodora, in 1939, in volume 41, issue 481, pages 28-34

Created: 2014-06-16, modified: 2023-02-16

Authors: Robert T Clausen

Published in Rhodora, in 1944, in volume 46, issue 547, pages 281

Created: 2016-07-19, modified: 2023-02-16

Authors: Robert T Clausen

Published in Rhodora, in 1941, in volume 43, issue 509, pages 157-167

Created: 2014-06-16, modified: 2023-02-16

Authors: Robert T Clausen

Published in Rhodora, in 1939, in volume 41, issue 486, pages 254-256

Created: 2016-07-19, modified: 2023-02-16

Authors: Robert T Clausen

Published in Rhodora, in 1947, in volume 49, issue 585, pages 233-236

Created: 2014-06-16, modified: 2023-02-16

Authors: Robert T Clausen

Published in Torreya, in 1942, in volume 42, issue 6, pages 174-176

Created: 2022-12-12, modified: 2022-12-12

Authors: Robert T Clausen

Published in Rhodora, in 1949, in volume 51, issue 603, pages 33-34

Created: 2016-07-19, modified: 2023-02-16

Authors: Robert T Clausen | Charles H Uhl

Published in Madroño, in 1944, in volume 7, issue 6, pages 161-180

Created: 2016-02-15, modified: 2023-02-16

Authors: R T Clausen

Published in Rhodora, in 1939, in volume 41, pages 575-584

Created: 2014-06-16, modified: 2023-02-16

Authors: Robert T Clausen

Published in American Fern Journal, in 1948, in volume 38, issue 4, pages 176

Created: 2017-04-23, modified: 2017-04-23

Authors: R T Clausen

Published in Rhodora, in 1940, in volume 42, pages 201-202

Created: 2014-06-16, modified: 2023-02-16

Authors: R T Clausen

Published in Rhodora, in 1943, in volume 45, issue 534, pages 220-221

Created: 2016-07-19, modified: 2023-02-16

Authors: R T Clausen

Published in Rhodora, in 1937, in volume 39, issue 461, pages 188-190

Created: 2016-07-19, modified: 2023-02-16

Authors: R T Clausen

Published in Rhodora, in 1952, in volume 54, pages 42-45

Created: 2014-06-16, modified: 2023-02-16

Authors: J L Edwards | R T Clausen

Published in Torreya, in 1935, in volume 35, issue 1, pages 5-6

Created: 2022-12-14, modified: 2022-12-14

Authors: R T Clausen

Published in Rhodora, in 1937, in volume 39, issue 459, pages 57-60

Created: 2016-07-19, modified: 2023-02-16

Authors: R T Clausen

Published in Rhodora, in 1936, in volume 38, issue 454, pages 333-345

Created: 2016-07-19, modified: 2023-02-16

Authors: W C Muenscher | R T Clausen

Published in Rhodora, in 1934, in volume 36, pages 405-7

Created: 2014-06-16, modified: 2023-02-16

Authors: R T Clausen

Published in Rhodora, in 1937, in volume 39, issue 458, pages 29-31

Created: 2016-07-19, modified: 2023-02-16

Authors: K S Clausen | W T Gillis | W T Gillis-Jr. | R A Howard

Published in Journal of the Arnold Arboretum, in 1981, in volume 62, pages 211-242

Created: 2011-01-26, modified: 2023-02-16

Authors: J Clausen

Published in Madroño, in 1964, in volume 17, issue 8, pages 295

Created: 2016-02-15, modified: 2023-02-16

Authors: Jens Clausen

Published in Madroño, in 1964, in volume 17, issue 6, pages 173-197

Created: 2016-02-15, modified: 2023-02-16

Authors: P J Clausen

Published in Entomological News, in 1984, in volume 95, pages 83-86

Created: 2011-06-10, modified: 2021-04-05

Authors: A M Clausen | K A Okada

Published in Phytologia, in 1987, in volume 62, issue 3, pages 165-170

Created: 2016-05-06, modified: 2016-05-06

Authors: Robert T Orr

Published in Zeitschrift für Säugetierkunde, in 1965, in volume 30, pages 163-171

Created: 2016-08-03, modified: 2016-08-03

Authors: Morten Christensen | Jacob Heilmann-Clausen

Published in Mycotaxon, in 2009, in volume 107, issue 1, pages 431-440

Created: 2025-02-03, modified: 2025-02-03

Authors: P J Clausen

Published in Entomological News, in 1983, in volume 94, pages 33-34

Created: 2011-06-10, modified: 2021-04-05

Authors: Curtis P Clausen

Published in Jour Washington Acad Sci, in 1940, in volume 30, pages 504-516

Created: 2014-01-30, modified: 2025-12-03

Authors: Robert T Allen | Robert S Hutton

Published in The Coleopterists Bulletin, in 1969, in volume 23, issue 4, pages 109-112

Created: 2023-11-07, modified: 2025-12-17

Authors: Robert T Hance

Published in Biol Bull, in 1926, in volume 51, pages 443-448

Created: 2010-01-06, modified: 2011-06-21

Authors: P J Clausen

Published in Entomological News, in 1978, in volume 89, pages 129-132

Created: 2011-06-10, modified: 2011-06-21

Authors: P J Clausen

Published in Entomological News, in 1979, in volume 90, pages 141-142

Created: 2011-06-10, modified: 2021-04-05

Authors: P J Clausen

Published in Entomological News, in 1977, in volume 88, pages 127-132

Created: 2011-06-10, modified: 2011-06-21

Authors: Richard A Howard | Kristin S Clausen

Published in Journal of The Arnold Arboretum, in 1980, in volume 61, issue 4, pages 765-770

Created: 2016-07-07, modified: 2025-12-17

Authors: Robert T Moore

Published in The Wilson Bulletin, in 1947, in volume 59, issue 1, pages 21-25

Created: 2016-12-19, modified: 2023-02-16

Authors: C P Clausen

Published in Pan-Pacific Entomologist, in 1956, in volume 32, pages 125-127

Created: 2018-08-12, modified: 2018-08-12

Authors: Jens Clausen | R B Channell

Published in Rhodora, in 1964, in volume 66, issue 765, pages 32-46

Created: 2014-06-16, modified: 2023-02-16

Authors: Phyllis T Johnson | Robert Traub

Published in SMITHSONIAN MISCELLANEOUS COLLECTIONS, in 1954, in volume 123, issue 4, pages 1-68

Created: 2024-04-11, modified: 2024-04-11

Authors: Robert T Hance

Published in Transactions of The American Microscopical Society, in 1916, in volume 35, pages 137-138

Created: 2013-03-11, modified: 2013-03-11

Authors: Roger S Peterson | Edgar T Wherry | Reid Moran | Robert Ornduff

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

Created: 2016-02-15, modified: 2023-02-16

Authors: Raymond G Thompson | Robert T Allen

Published in The Coleopterists Bulletin, in 1974, in volume 28, issue 4, pages 185-201

Created: 2023-11-07, modified: 2025-12-17

Authors: Robert T Hatt

Published in Zoologica, in 1963, in volume 48, issue 4, pages 33-48

Created: 2016-11-07, modified: 2025-12-17

Authors: Robert T Dillon | Amy R Wethington

Published in Malacologia, in 2006, in volume 48, issue 1-2, pages 133-142

Created: 2024-05-09, modified: 2024-05-09

Authors: John T Nichols | Robert C Murphy | Ludlow Griscom

Published in The Auk, in 1917, in volume 34, pages 434-444

Created: 2013-03-08, modified: 2013-03-08