Physcia adscendens

are parasitized by

• Global Biotic Interactions: Illosporiopsis christiansenii (B. L. Brady & D. Hawksw.) D. Hawksw. 2001 (Christiansen's hobsonia lichen)
• Global Biotic Interactions: Laetisaria lichenicola Diederich, Lawrey & D. Broeck 2011
• Global Biotic Interactions: Laetisaria lichenicola Diederich, Lawrey & D. Broeck 2011
• Global Biotic Interactions: Marchandiomyces corallinus (Roberge) Diederich & D. Hawksw. 1990
• Global Biotic Interactions: Erythricium aurantiacum (Lasch) D. Hawksw. & A. Henrici 2015
• Global Biotic Interactions: Erythricium aurantiacum (Lasch) D. Hawksw. & A. Henrici 2015
• Global Biotic Interactions: Erythricium aurantiacum (Lasch) D. Hawksw. & A. Henrici 2015
• Global Biotic Interactions: Didymocyrtis epiphyscia Ertz & Diederich 2015
• Global Biotic Interactions: Illosporiopsis christiansenii (B. L. Brady & D. Hawksw.) D. Hawksw. 2001 (Christiansen's hobsonia lichen)
• Global Biotic Interactions: Illosporiopsis christiansenii (B. L. Brady & D. Hawksw.) D. Hawksw. 2001 (Christiansen's hobsonia lichen)
• Global Biotic Interactions: Illosporiopsis christiansenii (B. L. Brady & D. Hawksw.) D. Hawksw. 2001 (Christiansen's hobsonia lichen)
• Global Biotic Interactions: Illosporiopsis christiansenii (B. L. Brady & D. Hawksw.) D. Hawksw. 2001 (Christiansen's hobsonia lichen)