Rhizocarpon reductum

Rhizocarpon reductum 1
On rock. From the North Shore of Lake Superior, Ontario.

Rhizocarpon reductum 2
On upper intertidal rock. From New River Beach Provincial Park, New Brunswick.

Rhizocarpon reductum 3
On upper intertidal rock. From New River Beach Provincial Park, New Brunswick.

Rhizocarpon reductum 4
On upper intertidal rock. From New River Beach Provincial Park, New Brunswick.

Rhizocarpon reductum 5
On rock. From Woods Hole, Massachusetts.

Rhizocarpon reductum 6
On hard round rocks embedded in cut sandstone bank. From trail near Pt. Reyes Lighthouse, Marin County, California.

Rhizocarpon reductum 7
On hard round rocks embedded in cut sandstone bank. From trail near Pt. Reyes Lighthouse, Marin County, California.