Ascomata subglobose to pyriform, ostiolate, papillate, immersed, brown to black, solitary or gregarious. Papillae cylindrical, straight or curved. Paraphyses absent.

Asci unitunicate, 8-spored, thin-walled, early deliquescing.

Ascospores filamentous, curved, hyaline, tapering at each end into an elongate, conical apical chamber, acute or rounded, filled with mucus. All those collections with ascospore length ranging from 200 to 500 mm are included in LULWORthia sp.