Lagenulopsis is a monotypic genus of small, parasitic fungi within Coryneliaceae that live in tropical climates. "Lagenulopsis" exhibits high host specificity; it has only been observed growing on the leaves of "Podocarpus" trees. Its type species is "Lagenulopsis bispora". 
This genus was first described in 1942 by Harry Morton Fitzpatrick. Fitzpatrick received new material of the species then known as "Corynelia bispora" in 1933, reviewed his classification of it, and then founded "Lagenulopsis" on morphological differences between it and "Corynelia." This placed "L. bispora" into its current genus.