. . . . . . . . . "Melampsorella caryophyllacearum" . . "Abies balsamea" . . "Eric Knopf. 2017. Melampsorella caryophyllacearum host Abies balsamea. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/8837697> 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." .