Porina leptosperma Müll.Arg.
Thallus irregular in outline, to 6 cm diam., continuous or rarely dispersed, smooth, green to grey, matt, prothallus absent. Perithecia globose, strongly constricted at base, 0.1-0.15 mm diam., pale to dark red- brown, rarely covered by a thin layer of periderm. Paraphyses simple c. 1 µm thick. Asci obclavate, 50-70 × 3.4 µm. Ascospores 8 per ascus, 3-septate, ± fusiform to almost bacillar, 15-20 × 3-4 µm.
N: Wellington. Only one New Zealand collection is known, that of J. Buchanan (1874) from the leaves of Hymenophyllum dilatatum (UPS).
Cosmopolitan