Published in American Fern Journal, in 1966, in volume 56, pages 82-83
Created: 2017-04-23, modified: 2017-04-23![](https://www.biodiversitylibrary.org/pagethumb/9256246,60,60)
Published in Journal of the Arnold Arboretum, in 1981, in volume 62, pages 261-263
Created: 2011-01-26, modified: 2023-02-16![](https://www.biodiversitylibrary.org/pagethumb/628284,60,60)
Published in Rhodora, in 1963, in volume 65, issue 763, pages 241-242
Created: 2014-06-16, modified: 2016-07-26![](https://www.biodiversitylibrary.org/pagethumb/47828461,60,60)
Published in Madroño, in 1976, in volume 23, issue 5, pages 300
Created: 2016-02-15, modified: 2016-07-07![](https://www.biodiversitylibrary.org/pagethumb/7809994,60,60)
Published in Botanical Museum Leaflets, Harvard University, in 1941, in volume 9, pages 129-151
Created: 2016-02-07, modified: 2016-07-26![](https://www.biodiversitylibrary.org/pagethumb/7810017,60,60)
Published in Botanical Museum Leaflets, Harvard University, in 1941, in volume 9, pages 152-158
Created: 2016-02-07, modified: 2016-07-26![](https://www.biodiversitylibrary.org/pagethumb/47857012,60,60)
Published in Madroño, in 1968, in volume 19, issue 5, pages 187-192
Created: 2016-02-15, modified: 2016-07-07![](https://www.biodiversitylibrary.org/pagethumb/7811944,60,60)
Published in Botanical Museum Leaflets, Harvard University, in 1940, in volume 8, pages 109-119
Created: 2016-02-07, modified: 2016-07-26![](https://www.biodiversitylibrary.org/pagethumb/632500,60,60)
Published in Rhodora, in 1966, in volume 68, issue 776, pages 420-428
Created: 2014-06-16, modified: 2016-07-26![](https://www.biodiversitylibrary.org/pagethumb/608803,60,60)
Published in Rhodora, in 1942, in volume 44, issue 523, pages 236-237
Created: 2016-07-19, modified: 2016-07-19![](https://www.biodiversitylibrary.org/pagethumb/7812102,60,60)
Published in Botanical Museum Leaflets, Harvard University, in 1941, in volume 10, pages 41-58
Created: 2016-02-07, modified: 2016-07-26![](https://www.biodiversitylibrary.org/pagethumb/10010577,60,60)
Published in Sida, Contributions To Botany, in 1980, in volume 8, issue 4, pages 317-319
Created: 2015-12-02, modified: 2015-12-02![](https://www.biodiversitylibrary.org/pagethumb/32084427,60,60)
Published in American Fern Journal, in 1974, in volume 64, pages 97-98
Created: 2017-04-23, modified: 2017-04-23![](https://www.biodiversitylibrary.org/pagethumb/7811956,60,60)
Published in Botanical Museum Leaflets, Harvard University, in 1940, in volume 8, pages 121-128
Created: 2016-02-07, modified: 2016-07-26![](https://www.biodiversitylibrary.org/pagethumb/47827052,60,60)
Published in Madroño, in 1958, in volume 14, issue 7, pages 232-236
Created: 2016-02-15, modified: 2016-07-07![](https://www.biodiversitylibrary.org/pagethumb/7812122,60,60)
Published in Botanical Museum Leaflets, Harvard University, in 1942, in volume 10, pages 61-92
Created: 2016-02-07, modified: 2016-07-26![](https://www.biodiversitylibrary.org/pagethumb/31876792,60,60)
Published in American Fern Journal, in 1978, in volume 68, pages 63
Created: 2017-04-23, modified: 2017-04-23![](https://www.biodiversitylibrary.org/pagethumb/31876373,60,60)
Published in American Fern Journal, in 1976, in volume 66, pages 46-48
Created: 2017-04-23, modified: 2017-04-23![](https://www.biodiversitylibrary.org/pagethumb/9255571,60,60)
Published in Journal of The Arnold Arboretum, in 1979, in volume 60, issue 1, pages 154-162
Created: 2016-07-07, modified: 2016-07-07![](https://www.biodiversitylibrary.org/pagethumb/31880068,60,60)
Published in American Fern Journal, in 1962, in volume 52, pages 163
Created: 2017-04-23, modified: 2017-04-23![](https://www.biodiversitylibrary.org/pagethumb/31876737,60,60)
Published in American Fern Journal, in 1978, in volume 68, pages 11-12
Created: 2017-04-23, modified: 2017-04-23![](https://www.biodiversitylibrary.org/pagethumb/10897676,60,60)
Published in Journal of The Arnold Arboretum, in 1977, in volume 58, issue 1, pages 40-51
Created: 2016-07-07, modified: 2016-07-07![](https://www.biodiversitylibrary.org/pagethumb/50925602,60,60)
Published in Phytologia, in 2014, in volume 96, issue 1, pages 1-6
Created: 2016-06-29, modified: 2016-06-29![](https://www.biodiversitylibrary.org/pagethumb/10010444,60,60)
Published in Sida, Contributions To Botany, in 1979, in volume 8, issue 2, pages 188-193
Created: 2015-12-02, modified: 2015-12-02![](https://www.biodiversitylibrary.org/pagethumb/47861853,60,60)
Published in Madroño, in 1952, in volume 11, issue 8, pages 308-309
Created: 2016-02-15, modified: 2016-07-07![](https://www.biodiversitylibrary.org/pagethumb/41030960,60,60)
Published in Transactions of The Royal Society of South Australia, in 1966, in volume 90, pages 41-44
Created: 2013-01-14, modified: 2013-01-14![](https://www.biodiversitylibrary.org/pagethumb/13192155,60,60)
Published in Phytologia, in 1997, in volume 83, issue 3, pages 133-137
Created: 2016-05-04, modified: 2016-05-06![](https://www.biodiversitylibrary.org/pagethumb/1491828,60,60)
Published in Biol Bull, in 1964, in volume 126, pages 291-301
Created: 2010-01-06, modified: 2011-06-21![](https://www.biodiversitylibrary.org/pagethumb/31430575,60,60)
Published in Proceedings of The American Philosophical Society, in 1881, in volume 19, issue 108, pages 279-285
Created: 2017-01-01, modified: 2017-01-01![](https://www.biodiversitylibrary.org/pagethumb/13155814,60,60)
Published in Phytologia, in 1991, in volume 71, pages 1-4
Created: 2011-01-26, modified: 2023-02-16![](https://www.biodiversitylibrary.org/pagethumb/34563001,60,60)
Published in Proceedings of The Biological Society of Washington, in 1966, in volume 79, pages 305-306
Created: 2011-07-31, modified: 2011-07-31![](https://www.biodiversitylibrary.org/pagethumb/35295475,60,60)
Published in Botanical Gazette, in 1921, in volume 71, issue 4, pages 331-333
Created: 2017-03-14, modified: 2017-03-14![](https://www.biodiversitylibrary.org/pagethumb/43637867,60,60)
Published in Ruwenzori Expedition 1952, in 1961, in volume 1, issue 7, pages 177-323
Created: 2014-02-02, modified: 2014-02-02![](https://www.biodiversitylibrary.org/pagethumb/10580164,60,60)
Published in Postilla, in 1961, in volume 50, pages 1-20
Created: 2013-03-01, modified: 2013-03-01![](https://www.biodiversitylibrary.org/pagethumb/59046737,60,60)
Published in Western Australian Naturalist, in 1968, in volume 11, issue 1, pages 22-24
Created: 2021-04-04, modified: 2021-04-04![](https://www.biodiversitylibrary.org/pagethumb/1545939,60,60)
Published in Biol Bull, in 1991, in volume 180, pages 346-354
Created: 2010-01-07, modified: 2011-06-21![](https://www.biodiversitylibrary.org/pagethumb/40646137,60,60)
Published in Arnaldoa, in 2003, in volume 10, issue 2, pages 109-118
Created: 2014-06-16, modified: 2014-06-16![](https://www.biodiversitylibrary.org/pagethumb/660089,60,60)
Published in Rhodora, in 1975, in volume 77, pages 441-455
Created: 2014-06-16, modified: 2016-07-26![](https://www.biodiversitylibrary.org/pagethumb/8520001,60,60)
Published in Nautilis, in 1942, in volume 55, pages 92-93
Created: 2013-09-28, modified: 2013-09-28![](https://www.biodiversitylibrary.org/pagethumb/8515531,60,60)
Published in Nautilis, in 1944, in volume 57, pages 73-80
Created: 2013-09-28, modified: 2013-09-28![](https://www.biodiversitylibrary.org/pagethumb/27056410,60,60)
Published in Nautilis, in 1896, in volume 10, pages 93-94
Created: 2013-09-28, modified: 2013-09-28![](https://www.biodiversitylibrary.org/pagethumb/35238373,60,60)
Published in Botanical Gazette, in 1920, in volume 69, issue 4, pages 347-348
Created: 2017-03-14, modified: 2017-03-14![](https://www.biodiversitylibrary.org/pagethumb/8115482,60,60)
Published in The Great Basin Naturalist, in 1990, in volume 50, issue 3, pages 209-242
Created: 2017-11-16, modified: 2017-11-16![](https://www.biodiversitylibrary.org/pagethumb/10579826,60,60)
Published in Postilla, in 1955, in volume 21, pages 1-2
Created: 2012-06-24, modified: 2012-06-24![](https://www.biodiversitylibrary.org/pagethumb/42325961,60,60)
Published in Brimleyana, in 1986, in volume 12, pages 13-18
Created: 2017-04-21, modified: 2017-04-21![](https://www.biodiversitylibrary.org/pagethumb/13155725,60,60)
Published in Phytologia, in 1991, in volume 71, pages 160-162
Created: 2011-01-26, modified: 2023-02-16![](https://www.biodiversitylibrary.org/pagethumb/58107052,60,60)
Published in Forktail, in 1993, in volume 8, pages 83-88
Created: 2019-05-12, modified: 2019-05-12![](https://www.biodiversitylibrary.org/pagethumb/51280989,60,60)
Published in Journal of Raptor Research, in 1992, in volume 26, issue 4, pages 219-224
Created: 2017-04-07, modified: 2017-04-07![](https://www.biodiversitylibrary.org/pagethumb/27052155,60,60)
Published in Nautilis, in 1906, in volume 19, pages 128-130
Created: 2013-09-28, modified: 2013-09-28![](https://www.biodiversitylibrary.org/pagethumb/58986739,60,60)
Published in Western Australian Naturalist, in 1975, in volume 13, issue 2/3, pages 68-72
Created: 2021-04-04, modified: 2021-04-04