Growing on a boulder, near a stream, in a nikau grove
On rock with brophytes and exotic grasses in heavily-grazed farmland on steep, westerly-facing slope.
Common. Corticolous on the shaded trunks of mountain beech (Fuscospora cliffortioides) and mountain toatoa (Phyllocladus alpinus).
Photobiont green - image shows specimen in dry state. Undersides brown, bearing numerous minute fleck-like pseudocyphellae, upper surface punctate impressed. without soredia, isidia or phyllidia,. Apothecia present