Heterodermia leucomela

Heterodermia leucomela

Heterodermia leucomela photo by Ray Showman

DIAGNOSTIC FEATURES:   Scraggly growth; soralia on lower surface usually on rolled and twisted lobes; long cilia; medulla K+ yellow turning red (salazinic); compare with H. appalachensis, yellow undersurface which is K+ yellow, not recorded from Ohio.

ECOLOGY:  Rather rare in the Appalachian Mountains; in Ohio mostly older records showing a southern tendency, records from 8 counties; on bark exclusively.

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