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Order: Lecanorales
Family: Physciaceae
Species: Hyperphyscia adglutinata Photos: On planted Malus. Macroom, Cork, SW Ireland. Small, adpressed, greenish-brown thallus that can coalesce to cover large areas. Lower surface white, few white rhizinae. Upper surface with yellowish-green soredia. Apothecia infrequent, discs brown with smooth, swollen margins. Microscope photo below. Becoming more frequent on dusty, nutrient-enriched shaded trees and rocks. In urban areas it is often found in the canine-zone at base of trees. Chemical reactions negative Similar: Phaeophyscia orbicularis. Black under-surface with black rhizines and protruding cilia. |
Microscope photograph
Hyperphyscia adglutinata. October 2009. Fertile specimens: May 2010, 2012