. . . . . . . . . "Usnocetraria oakesiana" . . "Pinus strobus" . . "Nova Patch. 2017. Usnocetraria oakesiana host Pinus strobus. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/6111064> 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." .