. . . . . . . . . "Equisetum hyemale" . . "Stamnaria americana" . . "Erwin Gruber. 2015. Equisetum hyemale host of parasitic fungi Stamnaria americana. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/1209708> 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." .