Life habit: fungicolous, incl. lichenicolous, mostly commensalistic, non-lichenized Ascomata: apothecioid, aggregated or dispersed, immersed to erumpent, but then broadly attached to the substratum, roundish to elongate, pale to dark brown, gray or blackish, immarginate or indistinctly marginate disc: exposed, flat or slightly convex hairs: absent exciple: laterally of hyphoid cells, immersed in a more or less abundant, hyaline or pale colored gel, basally of isodiametric cells hypothecium: hyaline or pale colored, frequently indistinct; subhymenium: hyaline hymenium: hyaline, KI- epihymenium: ochre, yellowisg brown or olivaceous paraphyses: simple or branched, septate, apically in some species swollen, without pigments (but surrounded by the epihymenial pigmented gel), easily separating in K under slight pressure asci: clavate, thin-walled, with a single functional wall layer, wall apically slightly or distinctly thickened, I- and KI-, (4-)8-spored ascospores: hyaline, 0-1(-3)-septate, smooth, without a distinct perispore, subspherical, ellipsoid to fusiform, straight or slightly curved, with ± obtuse ends, in one fungicolous species forming numerous ellipsoid ascoconidia grouped in (4-)8 balls within the living mature ascus Conidiomata: known in one species, pycnidial conidiogenous cells: phialidic, flask-shaped, hyaline conidia: rod-shaped, straight, usually with truncate ends Geography: Europe, North America, and Jamaica Substrate: basidiomata and ascomata of fungi, thalli of lichens. Notes: This genus has only recently been recognized in the Sonoran area, and therefore it was not included in the key to the lichenicolous genera in volume 2. In Key 6 (lichenicolous apothecioid ascomycetes) the genus would key out with Phaeopyxis. Species of that genus are easily distinguished from Gelatinopsis by the presence of a coarsely granular, dark (violet) brown, K+ violet brown lateral excipular and epihymenial pigment. The type species, P. punctum, is furthermore distinguished by an apically hemiamyloid ascus wall.