Graphis tenella Ach.
Thallus crustose, thin, smooth to minutely roughened, continuous, greyish-white. Lirellae short, 1-2 × 0.3 mm, flexuous or curved, unbranched, the ends acute, thalline margin distinct, raised, proper exciple black, open at the top to reveal a dark disc, base open, brown. Ascospores 8 per ascus, 6-8-locular, 6-7 × 21-29 µm. Chemistry: Negative.
S: Nelson, Motupiko. Collected only once in New Zealand from bark of Crataegus monogyna (A. J. Healy, CHR).
Cosmopolitan
