Published in Novon, in 1992, in volume 2, pages 269-273

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

Published in Journal of the Arnold Arboretum, in 1979, in volume 60, pages 403-444

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

Published in Rhodora, in 1984, in volume 86, issue 846, pages 121-125

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

Published in Novon, in 2002, in volume 12, pages 290-298

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

Published in Rhodora, in 1978, in volume 80, issue 824, pages 570-574

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

Published in Novon, in 2002, in volume 12, pages 170-172

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

Published in Taxon, in 1975, in volume 24, pages 593-601

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

Published in Madroño, in 1970, in volume 20, issue 5, pages 257-263

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

Published in Journal of the Arnold Arboretum, in 1956, in volume 37, pages 217-268

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

Published in Journal of the Arnold Arboretum, in 1958, in volume 39, pages 49-100

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

Published in Journal of the Arnold Arboretum, in 1958, in volume 39, pages 111-212

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

Published in Journal of the Arnold Arboretum, in 1957, in volume 38, pages 51-80

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

Published in Journal of the Arnold Arboretum, in 1957, in volume 38, pages 170-198

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

Published in Journal of the Arnold Arboretum, in 1957, in volume 38, pages 295-373

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

Published in Pacific Science, in 1951, in volume 5, issue 1, pages 52-77

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

Published in Rhodora, in 1900, in volume 2, issue 17, pages 106

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

Published in Rhodora, in 1963, in volume 65, issue 763, pages 193-207

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

Published in Madroño, in 1977, in volume 24, issue 2, pages 65-68

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

Published in Madroño, in 1988, in volume 35, issue 2, pages 117-120

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

Published in Biol Bull, in 1991, in volume 180, pages 65-71

Created: 2010-01-07, modified: 2011-06-21

Published in Memoirs of The Queensland Museum, in 1992, in volume 32, pages 311-373

Created: 2012-10-29, modified: 2012-10-29

Published in Annals of the Entomological Society of America, in 1911, in volume 4, issue 2, pages 181-186

Created: 2016-08-22, modified: 2016-08-22

Published in Madroño, in 1978, in volume 25, issue 1, pages 30-39

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

Published in Palaeontology, in 1971, in volume 14, issue 2, pages 262-265

Created: 2016-04-23, modified: 2016-04-23

Published in Palaeontology, in 1976, in volume 19, issue 4, pages 681-688

Created: 2016-04-23, modified: 2016-04-23

Published in Rhodora, in 1900, in volume 2, issue 18, pages 127-130

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

Published in Rhodora, in 1900, in volume 2, issue 24, pages 243-246

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

Published in Annals of the Missouri Botanical Garden, in 1987, in volume 74, pages 117-120

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

Published in Annals of the Missouri Botanical Garden, in 1988, in volume 75, pages 1087-1144

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

Published in Rhodora, in 1967, in volume 69, issue 779, pages 241-305

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

Published in Sida, Contributions To Botany, in 1966, in volume 2, issue 5, pages 377-380

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

Published in Sida, Contributions To Botany, in 1990, in volume 14, issue 2, pages 145-167

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

Published in Journal of The Arnold Arboretum, in 1967, in volume 48, issue 4, pages 363-430

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

Published in Bull. Zool. Nom., in 1971, in volume 28, pages 75

Created: 2009-12-23, modified: 2023-05-10

Published in Bulletin of the United States National Museum, in 1884, in volume 25, pages 307-327

Created: 2010-02-13, modified: 2011-06-21

Published in Biol Bull, in 1998, in volume 195, pages 282-289

Created: 2010-01-07, modified: 2011-06-21

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

Created: 2017-01-01, modified: 2017-01-01

Published in Rhodora, in 1899, in volume 1, issue 2, pages 30-33

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

Published in Rhodora, in 1899, in volume 1, issue 5, pages 83-84

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

Published in Rhodora, in 1899, in volume 1, issue 6, pages 108-110

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

Published in Rhodora, in 1902, in volume 4, issue 37, pages 5-7

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

Published in Rhodora, in 1903, in volume 5, issue 56, pages 197-199

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

Published in Rhodora, in 1915, in volume 17, issue 193, pages 30-32

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

Published in Annals of the Missouri Botanical Garden, in 1991, in volume 78, pages 255-258

Created: 2010-01-08, modified: 2015-12-17

Published in Annals of the Missouri Botanical Garden, in 1994, in volume 81, pages 33-144

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

Published in Rhodora, in 1902, in volume 4, issue 40, pages 77-79

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

Published in Journal of the Arnold Arboretum, in 1984, in volume 65, pages 105-127

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

Published in Rhodora, in 1942, in volume 44, pages 409-414

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

Published in Sida, Contributions To Botany, in 1979, in volume 8, issue 1, pages 71-89

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

Published in Journal of The Arnold Arboretum, in 1960, in volume 41, issue 3, pages 279-286

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