PDD 19050, PDD 70098 (with ITS), PDD 122699, PDD 122862 (with ITS) are all the same species, having a stipitate, macroscopically smooth apothecium on recently fallen Knightia excelsa leaves. PDD 19050 was cited by Dennis (1961) as a New Zealand specimen of the Chilean species Helotium leucopus (=Hymenoscyphus leucopus). However, the New Zealand fungus does not match the description of H. leucopus by Gamundi 1998 (based on a specimen on Berberis leaves; Gamundi did not examine the type specimen from Persea leaves). The New Zealand fungus lacks the network of encrusted hyphae on the outside of the receptacle illustrated by Gamundi (such a network is common on many other Hymenoscyphus-like species from New Zealand) and has somewhat larger ascospores. The New Zealand fungus has unusual, free, narrow-cylindric, long, hair-like elements on the ouside of the receptacle(illustrated in PDD 19050, PDD 122699 and PDD 122869 and described from PDD 70098); excipulum of long cylindric cells in more or less parallel rows with thick walls. No indication of these hair-likke elements macroscopically. Phylogenetically it is isolated within Helotiaceae.

The New Zealand fungus is common on recently fallen Knightia excelsa leaves and has not been observed on other substrates. Based on substrate and macroscopic appearance, PDD 42030 and PDD 49460 are likely to be the same species.