Tar spot on Nothodanthonia and related indigenous genera is common in the South Island. It has also been collected in the Wellington Province. It is indigenous to New Zealand but of no economic importance.

Stromata amphigena, sparsa vel hinc inde 2-3 seriatim disposita, in utraque foliorum pagina conspicua, elliptica vel oblonga 0.25-0.5 mm longa, plerumque 1-loculigera subinde sed raro confluendo usque 1 mm longa, aterrima; loculus 300-400 µ latus, ca. 200 µ altus, pariete laterali ca. 10-14 µ crasso fuligineo, ca. 0.75 folii crassitudinem oocupans; clypeo epidermali aterrimo opaco; asci cylindracei vel cylindraceo-saccati, 90-105 x 14-18 µ (cum sporis uniserialibus) vel minores sed latiores usque 24 µ crassi (cum sporis biserialibus), subsessiles vel brevissime crasseque stipitati, ad apicem rotundati, octospori; sporae ellipsoideae vel globoso-ellipsoideae, continuae, amoene fuscae, circumcirca tunica fuscidula ca. 2 µ crassa cinctae, 14-17 x 10-12 µ (tunica inclusa); paraphyses copiosissimae, ascos multo superantes, ca. 1 µ crassae.

Es liegt eine durch die Sporen interessante Form vor. Diese sind ringsherum mit, einem bräunlichen etwa 2 µ breiten Mantel umgeben.

Hab. in foliis Danthoniae pilosae, Tiritea, Wellington, 4.3.1921, leg. G. H. Cunningham (no. 1053); Turakina, Wellington, 2.1.1921, leg. G. H. Cunningham (no. 1028).