It is unfortunate that the granulation on the walls of the hairs was overlooked in the original description by Dennis (1961), who referred the species to Pseudohelotium because of the form of the asci and ascospores. Pseudohelotium pineti (Batsch: Fries) Fuckel, (the type species) has simple paraphyses, asci with a distinctly amyloid apical pore, short, smooth, clavate hair-like elements at the apothecial margin and a pigmented excipular tissue. Clearly, the present species cannot be accommodated in Pseudohelotium and, indeed, the presence of differentiated, granulate hairs suggests it is better referred to Hyaloscyphaceae. It is in some respects similar to species of Lachnellula but differs in lacking agglutinated excipular hyphae, having a conical ascus apex, much-branched paraphyses and in occurring on a non-woody substratum. The hairs in the material examined, though granulate over most of their length, are smooth towards the base and this approaches the situation in Cistella. However, in that genus the hairs are usually clavate, with granulation confined to the tip of the apical cell. Species of Cistella also differ in having asci with an amyloid apical pore, though septate spores do occur and it is possible that these genera are related. Species of Lachnum differ in having simple, usually lanceolate paraphyses, asci with an amyloid apical pore and hairs which are granulate throughout their length. There seems to be no existing genus to which the present species may be appropriately referred, and a new genus is, therefore, proposed here to accommodate it.

Pseudohelotium asperotrichum, recently described from culms of Juncus sarophorus in Australia, was said to differ from P. juncicola in having granulate hairs and less profusely branched paraphyses. However, the type material is closely similar in all respects to that of P. juncicola except for the latter character, which alone cannot be regarded as of taxonomic significance. They are undoubtedly conspecific.