(Colenso, n. 4828)

Ascophores gregarious or scattered, covered at first by the epidermis of the host-plant, then erumpent, oblong at first, and with the opposite sides of the excipulum incurved, then expanding and becoming orbicular and concave; substance thin, soft; 2-3 mm. across; disc pale watery-grey, often with a tinge of pink, externally and the margin glabrous, dark brown; hypothecium and excipulum hyaline, delicately parenchymatous, passing into large, dark brown cells at the cortex ; asci cylindric-clavate, apex slightly narrowed, and not tinged blue with iodine; spores 8, irregularly 2-seriate, continuous, hyaline, smooth, elliptical, often slightly inaequilateral, 7x4 µ paraphyses slender.

On dead leaves of Phormium tenax. New Zealand

The species is not a Cenangium, as considered by Berkeley; the soft, watery substance, glabrous exterior, and not being fasciculate or caespitcose in habit, are against this idea. On the other hand, the fungus is a typical Pseudopeziza, and should in future stand as .P. Colensoi.
The elongated form of the fungus when young is caused by growing between the parallel rigid vascular bundle's of the host-plant; when it first bursts through the epidermis, it opens by a long, narrow slit, as in Hysterium, but gradually expands and becomes circular and widely open.