Sparsa, tecta. Peritheciis globosis atris, sub cuticula dealbata nidulantibus, ostiola impresso. Ascis cylindraceis. Sporidiis ovalibus, continuis, atrofuscis (0.099-0.01 x 0.007 mm.).

On flower stalks of Phormium, New Zealand (Kirk, 24).

[Notes from Kew Type specimen, PRJ 2010] Type specimen (Kirk 24) in K had been placed in the folder with Anthostomella tenacis (also described from New Zealand from Phormium). Lu & Hyde (2000) noted they were unable to find the type material of A. phormiicola in K. Why was it is this folder? Assumed they were the same species because from the same host? A brief examination of the material suggested that the spores were a little larger than described from A. tenacis by Lu & Hyde (2000) [about 12.5-13.5 x 8.5-9, broad elliptic with broadly rounded ends, no obvious germ slit, no apical cells; ascus apex not seen]