Arizona State University Lichen Herbarium (ASU:Lichens)
ASUL012315
5dfc27e8-4add-479e-a649-69eff2ee7ab8
SEDONA_0445
Placynthium nigrum (Hudson) Gray
Placynthiaceae
Garry Neil (05-Aug-19)
Garry Neil
365A
2019-04-20
20-Apr-19
United States, Arizona, Yavapai, side canyon off of Boynton Canyon Trail, Red Rock Ranger District, Coconino National Forest
34.929858 -111.869992
UTM 12 S 0420543 3865610
1487 meters
4880 ft
on sandstone outcrop, north facing, within a Ponderosa Pine/Oak woodland, full exposure
rock
Candelariella aurella
Thallu crustose, areolate in the center, continuous; upper surface black with outer perimeter surrounded by a blue prothallus; apothecia sessile, laminal; disc black, concave to convex; spot tests negative