Flora of New Zealand Series

Type: New Zealand. Sine loco. Charles Knight, BM!

Thallus greyish-brown or olivaceous, continuous to ± eroded or lacking, or squamulose-areolate, areolae plane to ± convex, often lifting from substrate, 1-5 cm diam. Apothecia numerous, scattered, small, 0.1-0.8 mm diam., solitary to 2-3-confluent, disc black, matt, epruinose, plane and marginate becoming convex and immarginate. Epithecium dense, black, granular, 8-10 µm thick. Hymenium pale straw-coloured, 17-25 µm tall. Hypothecium pale yellow-brown, 35 µm thick. Ascospores ellipsoid, 12.0-17.4(-22) × 5.1-8.7 µm.

N: S: St: Throughout, on rocks and clay banks in disturbed habitats. It is often common on recently exposed clay banks in roadside cuttings.

Endemic