Flora of New Zealand Series

B. ferax Müll. Arg., Bull. Soc. r. Bot. Belg. 31: 33 (1892).

Lectotype: New Zealand. Sine loco. W. Colenso 6337, G 638/13!

Thallus pale greyish-arachnoid, effuse, thin or lacking, saxicolous. Apothecia numerous, scattered to densely crowded, confluent, sessile 0.2-0.5 mm diam., concave to plane, margins flexuose at first, occluded with age as disc becomes convex, disc black, matt, epruinose. Hypothecium brown-black. Ascospores biseriate, ellipsoid to ± fabiform, 10.2-12-(13) × 5-6 µm.

N: On pumice, still very poorly collected.

Endemic