lichen-Physcia stellaris

Physcia stellaris

Physcia stellaris

Physcia stellaris photo by Bob Klips

Physcia stellaris apothecia

Physcia stellaris apothecia photo by Bob Klips

DIAGNOSTIC FEATURES: NIS; rugose appearance; seldom patterned; cortex K+ yellow, medulla K-; compare with P. aipolia which is maculate and patterned, medulla K+ yellow.

ECOLOGY: This lichen is found all over the entire US; widespread and common in Ohio; on bark, more rarely on rock. This is a pioneer species that is frequently found on twigs and limbs.

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