Published in Pacific Science, in 1957, in volume 11, issue 3, pages 265-274

Created: 2017-09-17, modified: 2017-09-17

Published in Pacific Science, in 1953, in volume 7, issue 4, pages 504-512

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

Published in Pacific Science, in 1966, in volume 20, issue 4, pages 435-444

Created: 2017-09-17, modified: 2017-09-17

Published in Journal of The Washington Academy of Sciences, in 1950, in volume 40, pages 298-299

Created: 2012-05-15, modified: 2025-12-03

Published in Journal of The Washington Academy of Sciences, in 1956, in volume 46, pages 348-351

Created: 2012-05-15, modified: 2025-12-03

Published in Botanical Gazette, in 1916, in volume 61, issue 6, pages 538

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

Published in Rhodora, in 1934, in volume 36, pages 407-8

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

Published in Jour Washington Acad Sci, in 1941, in volume 31, pages 509-515

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

Published in Proceedings of The United States National Museum, in 1958, in volume 108, pages 137-179

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

Published in Journal of The Washington Academy of Sciences, in 1951, in volume 41, pages 168-179

Created: 2012-05-15, modified: 2025-12-03

Published in Madroño, in 1941, in volume 6, issue 1, pages 29-30

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

Published in Madroño, in 1977, in volume 24, issue 2, pages 78-83

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

Published in Madroño, in 1973, in volume 22, issue 2, pages 71-73

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

Published in Annals of the Missouri Botanical Garden, in 1928, in volume 15, pages 91-108

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

Published in Annals of the Missouri Botanical Garden, in 1929, in volume 16, pages 393-398

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

Published in Annals of the Missouri Botanical Garden, in 1932, in volume 19, pages 497-498

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

Published in Annals of the Missouri Botanical Garden, in 1965, in volume 52, pages 387-398

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

Published in Madroño, in 2013, in volume 60, pages 325-329

Created: 2019-04-08, modified: 2019-04-08

Published in Botanical Gazette, in 1916, in volume 61, issue 6, pages 453-476

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

Published in Madroño, in 1942, in volume 6, issue 5, pages 145-151

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

Published in Madroño, in 1960, in volume 15, issue 7, pages 193-197

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

Published in The Wilson Bulletin, in 1898, in volume 10, issue 4, pages 69

Created: 2016-11-27, modified: 2023-02-16

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 121-127

Created: 2012-05-15, modified: 2025-12-03

Published in Annals of the Missouri Botanical Garden, in 1938, in volume 25, pages 225-297

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

Published in American Fern Journal, in 1960, in volume 50, pages 55-62

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

Published in Botanical Gazette, in 1918, in volume 66, issue 2, pages 143-161

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

Published in Biol Bull, in 1918, in volume 35, pages 199-206

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

Published in Madroño, in 1943, in volume 7, issue 3, pages 65-67

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

Published in Journal of The Straits Branch of The Royal Asiatic Society, in 1912, in volume 62, pages 24-25

Created: 2024-01-26, modified: 2024-01-26

Published in Biol Bull, in 1947, in volume 93, pages 250-258

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

Published in Contributions from the University of Michigan Herbarium, in 1973, in volume 11, issue 1, pages 1-24

Created: 2016-07-11, modified: 2016-07-11

Published in The Wilson Bulletin, in 1938, in volume 50, issue 1, pages 13-17

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

Published in Proceedings of The American Philosophical Society, in 1919, in volume 58, issue 220, pages 382-385

Created: 2017-01-01, modified: 2023-02-16

Published in Jour Washington Acad Sci, in 1944, in volume 34, pages 132-133

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

Published in Madroño, in 1943, in volume 7, issue 1, pages 31

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

Published in The Wilson Bulletin, in 1913, in volume 25, issue 2, pages 90-91

Created: 2016-11-27, modified: 2023-02-16

Published in Madroño, in 1969, in volume 20, issue 4, pages 214-219

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

Published in The Wilson Bulletin, in 1945, in volume 57, issue 1, pages 86

Created: 2016-12-04, modified: 2023-02-16

Published in Madroño, in 2001, in volume 48, issue 2, pages 112-115

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

Published in Journal of The Arnold Arboretum, in 1977, in volume 58, issue 2, pages 190-192

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

Published in The Great Basin Naturalist, in 1999, in volume 59, issue 4, pages 301-314

Created: 2017-11-16, modified: 2023-02-16

Published in The Wilson Bulletin, in 1912, in volume 24, issue 2, pages 111-114

Created: 2016-11-27, modified: 2023-02-16

Published in The Wilson Bulletin, in 1971, in volume 83, issue 1, pages 34

Created: 2017-08-22, modified: 2023-02-16

Published in The Wilson Bulletin, in 1925, in volume 37, issue 4, pages 244-247

Created: 2016-11-27, modified: 2023-02-16

Published in The Wilson Bulletin, in 1901, in volume 13, issue 4, pages 9-10

Created: 2016-11-27, modified: 2023-02-16

Published in The Wilson Bulletin, in 1961, in volume 73, issue 3, pages 262-267

Created: 2016-12-04, modified: 2023-02-16

Published in The Wilson Bulletin, in 1926, in volume 38, issue 1, pages 43-44

Created: 2016-11-27, modified: 2023-02-16

Published in The Wilson Bulletin, in 1960, in volume 72, issue 3, pages 244-247

Created: 2016-12-04, modified: 2023-02-16

Published in The Wilson Bulletin, in 1931, in volume 43, issue 3, pages 173-176

Created: 2016-11-27, modified: 2023-02-16

Published in The Wilson Bulletin, in 1956, in volume 68, issue 3, pages 264-266

Created: 2016-12-04, modified: 2023-02-16