. . . . . . . . . "Blechnum penna-marina" . . "Cranfillia fluviatilis" . . "Christopher Tracey. 2014. Blechnum penna-marina associated species with names lookup Cranfillia fluviatilis. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/637136> on 05 Apr 2018." . . . . "http://iNaturalist.org is a place where you can record what you see in nature, meet other nature lovers, and learn about the natural world." .