Irish lichens

Order: Lecanorales       Family: Scoliciosporaceae

Species: Scoliciosporum chlorococcum

Growth type crustose.
Photos: On Acer trunk. Aughinish, Co. Limerick, Ireland.
Identification needs confirming

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

Scoliciosporum chlorococcum
Scoliciosporum chlorococcum December 2009

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