Published in American Fern Journal, in 1985, in volume 75, pages 128-132
Created: 2017-04-23, modified: 2017-04-23![](https://www.biodiversitylibrary.org/pagethumb/1556272,60,60)
Published in Biol Bull, in 1956, in volume 110, pages 157-168
Created: 2010-01-06, modified: 2011-06-21![](https://www.biodiversitylibrary.org/pagethumb/1559043,60,60)
Published in Biol Bull, in 1957, in volume 112, pages 196-219
Created: 2010-01-06, modified: 2011-06-21![](https://www.biodiversitylibrary.org/pagethumb/1482372,60,60)
Published in Biol Bull, in 1958, in volume 115, pages 257-268
Created: 2010-01-06, modified: 2011-06-21![](https://www.biodiversitylibrary.org/pagethumb/60527211,60,60)
Published in Cryptogamie. Algologie, in 1980, in volume 1, issue 1, pages 3-17
Created: 2021-02-17, modified: 2021-02-17