Graphidaceae
Phaeographis smithii Growth type crustose. K+ yellow > red (crystals), C-, KC+ red, P+ yellowish-orange, UV-. Found on smooth, neutral to basic-barked trees and shrubs Very similar to P. dentritica but base of the exciple is open. Smoother thallus with flatter and less-branched lirellae. Spores are brown (colourless when young), 5-7 septate, 26-40 x 7-10 µm. Microscope photograph below. Similar: P. dentritica. Base of exciple closed, spores 7-9 septate. Phaeographis inusta. Spores 3-5 septate, K-, C-, P- |
Microscope photograph
Phaeographis smithii
Thorncombe Woods, Badbury Rings and Broadstone, Dorset. March 2014 and 2016, January 2024