Published in Journal of The Arnold Arboretum, in 1936, in volume 17, issue 1, pages 38-41

Created: 2016-07-07, modified: 2016-07-07

Published in Torreya, in 1918, in volume 18, issue 4, pages 74-75

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

Published in Sida, Contributions To Botany, in 1976, in volume 6, issue 4, pages 284-310

Created: 2015-12-02, modified: 2015-12-02

Published in Phytologia, in 1975, in volume 31, issue 3, pages 241-245

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

Published in American Malacological Bulletin, in 2007, in volume 23, issue 1, pages 191-194

Created: 2017-08-12, modified: 2017-08-12

Published in Phytologia, in 1986, in volume 61, issue 2, pages 119-125

Created: 2017-03-08, modified: 2017-03-08

Published in Phytologia, in 2010, in volume 92, issue 2, pages 241-248

Created: 2017-03-08, modified: 2017-03-08

Published in Phytologia, in 2004, in volume 86, pages 65-74

Created: 2013-10-12, modified: 2013-10-12

Published in American Fern Journal, in 1976, in volume 66, pages 113-115

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

Published in Biol Bull, in 1956, in volume 111, pages 248-268

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

Published in Nautilis, in 1938, in volume 51, pages 142-143

Created: 2013-09-28, modified: 2013-09-28

Published in The Wilson Bulletin, in 1974, in volume 86, issue 4, pages 344-356

Created: 2016-11-27, modified: 2016-11-27

Published in Proceedings of The United States National Museum, in 1907, in volume 33, pages 547-571

Created: 2011-06-30, modified: 2017-01-06

Published in Annals of the Missouri Botanical Garden, in 1941, in volume 28, pages 409-491

Created: 2010-01-08, modified: 2015-12-16

Published in Madroño, in 1981, in volume 28, issue 3, pages 159-162

Created: 2016-02-15, modified: 2016-07-07

Published in Madroño, in 1981, in volume 28, issue 3, pages 188-190

Created: 2016-02-15, modified: 2016-07-07

Published in Phytologia, in 1977, in volume 37, issue 5, pages 449-450

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

Published in Phytologia, in 1980, in volume 46, issue 5, pages 285-287

Created: 2017-03-08, modified: 2017-03-08

Published in Madroño, in 1990, in volume 37, issue 3, pages 195-199

Created: 2016-02-15, modified: 2016-07-07

Published in Proceedings of the California Academy of Sciences, in 1975, in volume 40, pages 93-107

Created: 2011-06-28, modified: 2011-06-28

Published in Biol Bull, in 1969, in volume 136, pages 288-300

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

Published in Rhodora, in 1967, in volume 69, issue 777, pages 51-4

Created: 2014-06-16, modified: 2016-07-26

Published in Rhodora, in 1963, in volume 65, issue 764, pages 359-63

Created: 2014-06-16, modified: 2016-07-26

Published in Jour Washington Acad Sci, in 1939, in volume 29, pages 1-14

Created: 2014-01-30, modified: 2014-01-30

Published in Phytologia, in 1976, in volume 33, issue 4, pages 296-302

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

Published in Rhodora, in 1919, in volume 21, issue 241, pages 24

Created: 2016-07-19, modified: 2016-07-19

Published in The Auk, in 1895, in volume 12, pages 70-71

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

Published in The Auk, in 1892, in volume 9, pages 398-399

Created: 2013-03-07, modified: 2013-03-08

Published in Pacific Science, in 1951, in volume 5, issue 4, pages 291-297

Created: 2017-09-10, modified: 2017-09-10

Published in Rhodora, in 1956, in volume 58, issue 690, pages 160-161

Created: 2016-07-19, modified: 2016-07-19

Published in Madroño, in 1980, in volume 27, issue 3, pages 138-145

Created: 2016-02-15, modified: 2016-07-07

Published in The Wilson Bulletin, in 1972, in volume 84, issue 2, pages 119-135

Created: 2016-12-04, modified: 2016-12-04

Published in Novon, in 2001, in volume 11, pages 360-365

Created: 2011-01-28, modified: 2016-02-16

Published in Annals And Magazine of Natural History, in 1864, in volume 13, pages 184

Created: 2011-09-28, modified: 2011-09-28

Published in Phytoneuron, in 2014, in volume 2014-57, pages 1-12

Created: 2016-04-29, modified: 2016-04-29

Published in Memoirs of the Queensland Museum, in 1945, in volume 12, issue 3, pages 134-135

Created: 2016-05-17, modified: 2016-05-17

Published in Rhodora, in 1920, in volume 22, issue 262, pages 167-168

Created: 2016-07-19, modified: 2016-07-19

Published in Botanical Gazette, in 1893, in volume 18, issue 5, pages 183-186

Created: 2017-03-14, modified: 2017-03-14

Published in Botanical Gazette, in 1919, in volume 68, issue 3, pages 208-221

Created: 2017-03-14, modified: 2017-03-14

Published in Phytologia, in 1972, in volume 24, issue 1, pages 15-18

Created: 2017-02-22, modified: 2017-02-22

Published in Phytologia, in 1974, in volume 28, issue 1, pages 21-23

Created: 2017-02-22, modified: 2017-02-22

Published in Journal of The New York Entomological Society, in 1936, in volume 44, issue 2, pages 124

Created: 2016-05-24, modified: 2016-05-24

Published in The Great Basin Naturalist, in 1990, in volume 50, issue 4, pages 313-319

Created: 2017-11-16, modified: 2017-11-16

Published in The Great Basin Naturalist, in 1982, in volume 42, pages 413-414

Created: 2017-11-16, modified: 2017-11-16

Published in Phytologia, in 2008, in volume 90, pages 41-46

Created: 2011-01-26, modified: 2011-06-21

Published in Phytologia, in 1984, in volume 56, pages 55-60

Created: 2011-01-26, modified: 2011-06-21

Published in Novon, in 2004, in volume 14, pages 365-371

Created: 2011-01-28, modified: 2011-06-21

Published in Entomological News, in 1953, in volume 64, pages 201-204

Created: 2011-01-31, modified: 2011-06-21

Published in Rhodora, in 1962, in volume 64, issue 757, pages 87-91

Created: 2014-06-16, modified: 2016-07-26

Published in Phytologia, in 1998, in volume 84, issue 6, pages 385-388

Created: 2016-05-04, modified: 2016-05-06