Trichothelium alboatrum Vain.
Phylloporina asplenii Zahlbr., Denkschr. Akad. Wiss. Wien math.-naturwiss. Kl. 104: 257 (1941).
Phylloporina asplenii Holotype (fide Santesson loc. cit., p. 271): New Zealand. Wellington, near Palmerston, on Asplenium bulbiferum. H.H. Allan 235, W.
Thallus to 12 mm diam., ± dispersed (with round algiferous patches) or in central parts continuous, smooth, green, greenish-grey to pale grey, matt or slightly shining, prothallus absent. Perithecia sessile 0.1-0.2 mm diam., black, usually constricted at base, apical setae with white tips or totally white, rarely totally black, 4-8 usually not confluent, sometimes scattered on the globose perithecia, sometimes absent. Paraphyses simple, 1 µm thick. Asci 75-85 × 8-10 µm. Ascospores 3-7-septate, bacillar to fusiform, 20-38 × 2-4.5 µm.
N: Wellington (Feilding; Kitchener Park, Palmerston North; Colonial Knob, near Wellington). On leaves of Asplenium bulbiferum, A. flaccidum, Hymenophyllum dilatatum, Olea cunninghamii and Polystichum hispidum. Collected by Sven Berggren (S), John Buchanan (GLAM, WELT) and H.H. Allan (W).
Pantropical
