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Order: Lecanorales Family: Scoliciosporaceae
Species: Scoliciosporum chlorococcum Photos: On Acer trunk. Aughinish, Co. Limerick, Ireland. Widespreading grey-green to blackish-green irregularly granular thallus. Often found sterile but when present the glossy apothecia are reddish-brown to brown-black when wet. Very pollution tolerant. Common but easily overlooked on damp, shaded, nutrient-rich bark, also on wood and heather stems, rare on rock. Chemical reactions negative. Similar: S. umbrinum and the green algae Desmococcus |
Scoliciosporum chlorococcum December 2009