Published in Biol Bull, in 1979, in volume 157, pages 249-257

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

Published in American Fern Journal, in 2010, in volume 100, pages 189-194

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

Published in Zoological Science, in 1993, in volume 10, pages 925-934

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

Published in American Fern Journal, in 2013, in volume 103, pages 21-26

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

Published in Mammal Study, in 1996, in volume 21, pages 125-136

Created: 2014-09-25, modified: 2014-09-25