Flora of New Zealand Series

Holotype: New Zealand. Auckland L., Carnley Harbour, North Arm. G. Einar Du Rietz 2318, 30.3.1927, S!

Thallus brown or black, translucent, rather thin, continuous or dispersed, with irregularly grouped small black ridges 1-3 mm long and 0.12 mm tall occurring on the surface of the thallus. Perithecia carbonaceous, small, 0.2-0.3 mm diam., nearly sessile on and between ridges, ostiole minute, depressed. Ascospores fusiform, (9-)10-12 × (4-)5.5-6.5 µm.

N: Wellington (Wellington Harbour). S: Otago (St Clair), Southland (Bluff). A: C: B: On maritime rocks at high water mark.

Austral