Physcia & Physconia (unidentified species)

Physcia 1
(possibly an undescribed species?)
On rock. From Big Bend National Park, southern Texas.

Physcia 2
On coastal rock. From Marin County, north of San Francisco, California.

Physcia 3
On coastal rock. From Marin County, north of San Francisco, California.

Physcia 4
On Quercus. From the Rocky Mountains, Colorado.

Physcia 5
On rock. From Payette National Forest, Idaho.

Physcia 6
On rock. From the alpine Sierra Nevada, California.

Physcia 7
(or a species of Physconia?)
On rock. From the alpine Sierra Nevada, California.

Physcia 8
(Physcia "group")
On Quercus. From the Mojave Desert, California.

Physcia 9
(surrounded by a species of Xanthoria)
On rock. From northeastern California.

Physcia 10
On rock. From northeastern California.

Physcia 11
On coastal rock. From Marin County, north of San Francisco, California.

Physcia 12
(possibly a species of Physconia)
On Quercus bark. From Mt. Palomar, southern California.

Physcia 13
(field notes: "possibly an undescribed species")
On rock. From Enchanted Rock State Natural Area, central Texas.

Physcia 14
(possibly Physcia subtilis?)
On rock. From along the Blue Ridge Parkway, Virginia.

Physcia 15
On limestone. From Lost Maples State Natural Area, near San Antonio, Texas.

Physcia 16
On rock. From the Kaibob National Forest, northern Arizona.

Physcia 17
On rock. From the Kaibob National Forest, northern Arizona.