. . . . . . . . . "Sthereus quadrituberculatus" . . "Bryophyta" . . "Paul Norwood. 2018. Sthereus quadrituberculatus plant that the organism was found on Bryophyta. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/9467752> 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." .