Eastern Speckled Shield Lichen - Punctelia bolliana |
- bluish-grey thallus
- growing on the bark of deciduous trees
- rather large brown apothecia (first picture below)
- brown to black dots (pycnidia) on the thallus surface (see second picture below)
- white, grainy spots (pseudocyphellae) on the thallus surface (see third picture below)
- whitish to tan underside with pale rhizines
- K + on the cortext (I got a greenish-yellow color)