Published in American Fern Journal, in 1911, in volume 1, pages 121-129
Created: 2017-04-23, modified: 2017-04-23![](https://www.biodiversitylibrary.org/pagethumb/2012771,60,60)
Published in Journal of The Washington Academy of Sciences, in 1914, in volume 4, issue 13, pages 356-368
Created: 2015-03-16, modified: 2015-03-16![](https://www.biodiversitylibrary.org/pagethumb/2185366,60,60)
Published in Journal of The Washington Academy of Sciences, in 1921, in volume 11, issue 8, pages 173-189
Created: 2015-03-16, modified: 2015-03-16![](https://www.biodiversitylibrary.org/pagethumb/1996606,60,60)
Published in Journal of The Washington Academy of Sciences, in 1912, in volume 2, issue 5, pages 118-125
Created: 2015-03-16, modified: 2015-03-16![](https://www.biodiversitylibrary.org/pagethumb/2000695,60,60)
Published in Journal of The Washington Academy of Sciences, in 1915, in volume 5, issue 10, pages 355-360
Created: 2015-03-16, modified: 2015-03-16![](https://www.biodiversitylibrary.org/pagethumb/2035675,60,60)
Published in Journal of The Washington Academy of Sciences, in 1918, in volume 8, issue 19, pages 613-620
Created: 2015-03-16, modified: 2015-03-16![](https://www.biodiversitylibrary.org/pagethumb/1988632,60,60)
Published in Journal of The Washington Academy of Sciences, in 1911, in volume 1, issue 4, pages 118-120
Created: 2015-03-16, modified: 2015-03-16![](https://www.biodiversitylibrary.org/pagethumb/2005966,60,60)
Published in Journal of The Washington Academy of Sciences, in 1916, in volume 6, issue 12, pages 370-384
Created: 2015-03-16, modified: 2015-03-16![](https://www.biodiversitylibrary.org/pagethumb/2217670,60,60)
Published in Journal of The Washington Academy of Sciences, in 1919, in volume 9, issue 13, pages 364-373
Created: 2015-03-16, modified: 2015-03-16![](https://www.biodiversitylibrary.org/pagethumb/1989504,60,60)
Published in Journal of The Washington Academy of Sciences, in 1913, in volume 3, issue 4, pages 103-109
Created: 2015-03-16, modified: 2015-03-16![](https://www.biodiversitylibrary.org/pagethumb/51696728,60,60)
Published in Bulletin of The African Bird Club, in 1998, in volume 5, issue 2, pages 133-135
Created: 2021-02-23, modified: 2021-02-23![](https://www.biodiversitylibrary.org/pagethumb/51697248,60,60)
Published in Bulletin of The African Bird Club, in 2000, in volume 7, issue 1, pages 83
Created: 2021-02-23, modified: 2021-02-23![](https://www.biodiversitylibrary.org/pagethumb/1989381,60,60)
Published in Journal of The Washington Academy of Sciences, in 1913, in volume 3, pages 16-19
Created: 2015-03-16, modified: 2015-03-16![](https://www.biodiversitylibrary.org/pagethumb/51752524,60,60)
Published in Bulletin of The African Bird Club, in 1997, in volume 4, issue 2, pages 130-132
Created: 2021-02-10, modified: 2021-02-10![](https://www.biodiversitylibrary.org/pagethumb/41807007,60,60)
Published in Scopus, in 1992, in volume 15, pages 93-101
Created: 2014-03-20, modified: 2014-03-20![](https://www.biodiversitylibrary.org/pagethumb/51599426,60,60)
Published in Bulletin of The African Bird Club, in 1995, in volume 2, issue 2, pages 116-119
Created: 2021-02-10, modified: 2021-02-10![](https://www.biodiversitylibrary.org/pagethumb/56210921,60,60)
Published in Bulletin of The African Bird Club, in 2012, in volume 19, issue 1, pages 79-80
Created: 2021-02-23, modified: 2021-02-23![](https://www.biodiversitylibrary.org/pagethumb/52377985,60,60)
Published in Gulf Research Reports, in 1980, in volume 6, issue 4, pages 421-422
Created: 2017-01-30, modified: 2017-01-30![](https://www.biodiversitylibrary.org/pagethumb/47992017,60,60)
Published in Madroño, in 1995, in volume 42, issue 4, pages 470-489
Created: 2016-02-15, modified: 2016-07-07![](https://www.biodiversitylibrary.org/pagethumb/41807233,60,60)
Published in Scopus, in 1993, in volume 16, pages 99-101
Created: 2014-03-20, modified: 2014-03-20![](https://www.biodiversitylibrary.org/pagethumb/51697194,60,60)
Published in Bulletin of The African Bird Club, in 2000, in volume 7, issue 1, pages 29-30
Created: 2021-02-23, modified: 2021-02-23![](https://www.biodiversitylibrary.org/pagethumb/40027883,60,60)
Published in Bulletin of The British Ornithologists' Club, in 1992, in volume 112, pages 134-135
Created: 2012-12-02, modified: 2012-12-02![](https://www.biodiversitylibrary.org/pagethumb/63629485,60,60)
Published in Madroño, in 2018, in volume 65, issue 1, pages 28-46
Created: 2024-06-16, modified: 2024-06-16![](https://www.biodiversitylibrary.org/pagethumb/47816302,60,60)
Published in Madroño, in 2005, in volume 52, pages 222-257
Created: 2016-02-15, modified: 2016-07-07![](https://www.biodiversitylibrary.org/pagethumb/1511644,60,60)
Published in Biol Bull, in 1941, in volume 80, pages 1-17
Created: 2010-01-06, modified: 2011-06-21![](https://www.biodiversitylibrary.org/pagethumb/41807195,60,60)
Published in Scopus, in 1993, in volume 16, pages 61-80
Created: 2014-03-20, modified: 2014-03-20![](https://www.biodiversitylibrary.org/pagethumb/51697137,60,60)
Published in Bulletin of The African Bird Club, in 1997, in volume 4, issue 1, pages 36-41
Created: 2021-02-10, modified: 2021-02-10![](https://www.biodiversitylibrary.org/pagethumb/51745883,60,60)
Published in Bulletin of The African Bird Club, in 2007, in volume 14, issue 1, pages 26-35
Created: 2021-02-23, modified: 2021-02-23![](https://www.biodiversitylibrary.org/pagethumb/40029269,60,60)
Published in Bulletin of The British Ornithologists' Club, in 1996, in volume 116, pages 186-188
Created: 2012-12-02, modified: 2012-12-02![](https://www.biodiversitylibrary.org/pagethumb/16019617,60,60)
Published in The Auk, in 1914, in volume 31, pages 415
Created: 2013-03-08, modified: 2013-03-08![](https://www.biodiversitylibrary.org/pagethumb/16018418,60,60)
Published in The Auk, in 1910, in volume 27, pages 474-476
Created: 2013-03-08, modified: 2013-03-08![](https://www.biodiversitylibrary.org/pagethumb/53402336,60,60)
Published in William Marriot Canby letters to Asa Gray, 1861-1895, pages 1
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53402248,60,60)
Published in William Marriot Canby letters to Asa Gray, 1861-1895, in 1882, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53402250,60,60)
Published in William Marriot Canby letters to Asa Gray, 1861-1895, in 1882, pages 1
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53402253,60,60)
Published in William Marriot Canby letters to Asa Gray, 1861-1895, in 1882, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53402261,60,60)
Published in William Marriot Canby letters to Asa Gray, 1861-1895, in 1883, pages 1
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53402264,60,60)
Published in William Marriot Canby letters to Asa Gray, 1861-1895, in 1884, pages 1
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53402278,60,60)
Published in William Marriot Canby letters to Asa Gray, 1861-1895, in 1884, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53402280,60,60)
Published in William Marriot Canby letters to Asa Gray, 1861-1895, in 1885, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53402282,60,60)
Published in William Marriot Canby letters to Asa Gray, 1861-1895, in 1885, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53402265,60,60)
Published in William Marriot Canby letters to Asa Gray, 1861-1895, in 1884, pages 1
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53402266,60,60)
Published in William Marriot Canby letters to Asa Gray, 1861-1895, in 1884, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53402268,60,60)
Published in William Marriot Canby letters to Asa Gray, 1861-1895, in 1884, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53402259,60,60)
Published in William Marriot Canby letters to Asa Gray, 1861-1895, in 1882, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53402270,60,60)
Published in William Marriot Canby letters to Asa Gray, 1861-1895, in 1884, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53402272,60,60)
Published in William Marriot Canby letters to Asa Gray, 1861-1895, in 1884, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53402274,60,60)
Published in William Marriot Canby letters to Asa Gray, 1861-1895, in 1884, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53402276,60,60)
Published in William Marriot Canby letters to Asa Gray, 1861-1895, in 1884, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53402255,60,60)
Published in William Marriot Canby letters to Asa Gray, 1861-1895, in 1882, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53402246,60,60)
Published in William Marriot Canby letters to Asa Gray, 1861-1895, in 1882, pages 1-2
Created: 2017-06-24, modified: 2017-06-24