. . . . . . . . . "Parmotrema hypotropum" . . "Xylococcus bicolor" . . "Jay L. Keller. 2018. Parmotrema hypotropum host Xylococcus bicolor. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/10000096> 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." .