Published in American Fern Journal, in 1999, in volume 89, pages 232-243

Created: 2017-04-23, modified: 2017-04-23

Published in American Fern Journal, in 1982, in volume 72, pages 11

Created: 2017-04-23, modified: 2017-04-23

Published in Biol Bull, in 2003, in volume 204, pages 256-269

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

Published in Zoological Science, in 1994, in volume 11, pages 889-894

Created: 2012-09-19, modified: 2012-09-19