Apothecia gregaria, sessilia, pallido-albida, siccitate pallido-lutea vel carnea, latit. 0.5-0.75 mm., margine tenuiter albo-villosulae fimbriato. Asci oblongati, octospori, 115 x 10-11 µ, apice ultimo obsolete jodo coerulescente; ascosporae conglobatae, bacillares, arcuatae, hyalinae, 75-80 x 2 µ; paraphyses filiformes, crassit 2 µ. Pili cupulae brevissimi, articulati, apice obtusi, tenue-tunicati, 25-45 x 3-4 µ.

One may, perhaps, question the propriety of assigning to Arachnopeziza a fungus without a visible subiculum. The apothecia, however, are densely crowded over extensive, sharply defined, patches of the substrate, distinctly paler coloured than the remainder and must arise from a common mycelial mat even if it does not form an evident subiculum. The fasciculate ascospores, slender thin-walled hairs and cylindrical obtuse paraphyses all agree with Arachnopeziza, though the spores do not appear to become septate in the asci. The alternative genus without a subiculum would seem to be Lasiobelonium, the type species of which, Belonidium amoenum Speg., is imperfectly known.

In foliis Rhopalostylidii sapidi (Palmae), Henderson, Waitakere Ra., Auckland, 11.12.1955, Dingley 18975 (typus)

[Notes from Kew Type specimen, PRJ 2010] Kew images.