Recent studies on Gelatinopsis are few as are studies of the family Helicogoniaceae to which Gelatinopsis is referred. The family has 7 genera and 38 species. They are all parasites in the hymenia of fungi (Ascomycota, Basidiomycota) distributed mostly worldwide mostly in temperate ecosystems (Jaklitsch et al. 2016). There are only a few sequences on GenBank, mostly of two gene regions ITS and LSU for four genera (Eleutheromyces, Gelatinipulvinella, Gelatinopsis, Geltingia). In the last revision and large phylogeny of the class Leotiomycetes published by Johnston et al. (2019), only two sequences of two genera (Gelatinipulvinella astraeicola, Gelatinopsis fungicola) were used. These species were placed sister to the order Phacidiales, an order with saprobic and parasitic (endophytic) species that grow on leaves, bark, and wood (Jaklitsch et al. 2016). Due to the lack of taxa sampling in the family Helicogoniaceae and the class Leotiomycetes more generally, it is still unclear if these relationships are true. Furthermore, the current information in GenBank for the three species of Gelatinopsis with sequences suggest that the genus could be paraphyletic. Further complicating the picture, there is no current sequence for the type genus Helicogonium.
[Poorly supported sister relationship to Phacidiales in Johnston 2022, https://doi.org/10.7931/gx9a-c781]