Published in Biol Bull, in 1948, in volume 94, pages 176-183

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

Published in Biol Bull, in 1966, in volume 131, pages 76-82

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

Published in Smithsonian Collections, in 1903, in volume 45, pages 1-73

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Published in Phytologia, in 1974, in volume 29, pages 152-153

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Published in Proc Biol Soc Washington, in 1901, in volume 14, pages 39-40

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Published in Smithsonian miscellaneous collections, in 1918, in volume 68, issue 9, pages 1-12

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Published in Madroño, in 1976, in volume 23, issue 5, pages 274-283

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Published in Annals of the Missouri Botanical Garden, in 1981, in volume 68, pages 222-224

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

Published in Novon, in 1992, in volume 2, pages 319-321

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Published in Smithsonian Institution Miscellaneous Collection, in 1915, in volume 65, issue 12, pages 1-31

Created: 2013-09-27, modified: 2013-09-27

Published in Bulletin United States National Museum, in 1907, in volume 57, pages 1-282

Created: 2010-01-06, modified: 2011-10-03

Published in Novon, in 1996, in volume 6, pages 150-156

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Published in Novon, in 1992, in volume 2, pages 81-110

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Published in Annals And Magazine of Natural History, in 1908, in volume 1, pages 194-206

Created: 2011-09-22, modified: 2011-09-22

Published in Annals And Magazine of Natural History, in 1909, in volume 3, pages 415-422

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Published in Annals And Magazine of Natural History, in 1907, in volume 20, pages 426-430

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Published in Proceedings of The United States National Museum, in 1906, in volume 30, pages 737-758

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Published in Proc. biol. Soc. Washington, in 1912, in volume 25, pages 117

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Published in Novon, in 1993, in volume 3, pages 244

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Published in Annals And Magazine of Natural History, in 1900, in volume 6, pages 570-574

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Published in Proceedings of The Biological Society of Washington, in 1914, in volume 27, pages 225-226

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Published in Proceedings of The United States National Museum, in 1910, in volume 38, pages 385-386

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Published in Novon, in 1992, in volume 2, pages 193-197

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Published in Annals And Magazine of Natural History, in 1908, in volume 1, pages 68-70

Created: 2011-09-22, modified: 2011-09-22

Published in Annals And Magazine of Natural History, in 1910, in volume 6, pages 458-461

Created: 2011-09-22, modified: 2011-09-22

Published in Annals And Magazine of Natural History, in 1907, in volume 20, pages 389-398

Created: 2011-09-22, modified: 2011-09-22

Published in Proceedings of The Biological Society of Washington, in 1911, in volume 24, pages 228-229

Created: 2011-07-31, modified: 2013-11-21

Published in Annals And Magazine of Natural History, in 1897, in volume 20, pages 379-385

Created: 2011-09-23, modified: 2011-09-23

Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1902, in volume 54, pages 389-412

Created: 2013-04-21, modified: 2013-04-21

Published in Proceedings of the Washington Academy of Sciences, in 1900, in volume 13, pages 157

Created: 2013-06-17, modified: 2013-06-17

Published in Proceedings of the Biological Society of Washington, in 1902, in volume 15, pages 245-246

Created: 2014-03-21, modified: 2014-03-21

Published in Proceedings of the Biological Society of Washington, in 1905, in volume 18, pages 229-230

Created: 2009-12-22, modified: 2011-06-21

Published in Proceedings of the United States National Museum, in 1913, in volume 46, issue 2013, pages 85-92

Created: 2010-10-12, modified: 2014-05-22

Published in Annals of the Missouri Botanical Garden, in 1977, in volume 64, pages 374-375

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

Published in Annals of the Missouri Botanical Garden, in 1978, in volume 65, pages 1133-1254

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

Published in Annals of the Missouri Botanical Garden, in 1981, in volume 68, pages 226

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

Published in Annals of the Missouri Botanical Garden, in 1990, in volume 77, pages 588-590

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

Published in Novon, in 2001, in volume 11, pages 389-394

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

Published in Annals And Magazine of Natural History, in 1907, in volume 20, pages 398-401

Created: 2011-09-22, modified: 2011-09-22

Published in Proceedings of The Biological Society of Washington, in 1903, in volume 16, pages 119-120

Created: 2011-07-31, modified: 2013-09-06

Published in Proceedings of The United States National Museum, in 1906, in volume 29, pages 555-563

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

Published in Proceedings of The United States National Museum, in 1906, in volume 30, issue 1472, pages 819-825

Created: 2011-06-30, modified: 2013-03-08

Published in Proceedings of The United States National Museum, in 1912, in volume 42, pages 21-26

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

Published in Proceedings of the Washington Academy of Sciences, in 1900, in volume 2, pages 83-109

Created: 2015-04-03, modified: 2015-04-03

Published in Proceedings of the Biological Society of Washington, in 1905, in volume 18, pages 253

Created: 2014-11-11, modified: 2014-11-11

Published in Proceedings of the Biological Society of Washington, in 1911, in volume 24, pages 161-162

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

Published in Smithsonian Miscellaneous Collections, in 1929, in volume 81, issue 9, pages 1-30

Created: 2013-06-11, modified: 2013-06-11

Published in Proceedings of the United States National Museum, in 1913, in volume 46, issue 2034, pages 413-429

Created: 2010-10-12, modified: 2013-01-28

Published in Annals of the Missouri Botanical Garden, in 1987, in volume 74, pages 416-423

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

Published in Novon, in 1992, in volume 2, pages 322-328

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