. . . . . . . . . "Psittacanthus sonorae" . . "Bursera microphylla" . . "Mike Plagens. 2017. Psittacanthus sonorae host Bursera microphylla. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/8539182> 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." .