Coccodiniaceae Höhn. ex O.E. Erikss., Op. bot. Soc. bot. Lund 60: 42 (1981)

 MycoBank number: MB 80615; Index Fungorum number: IF 80615; Facesoffungi number: FoF 10352; 23 known species

Saprobic, epiphytic or biotrophic on the branches, stems, leaves as sooty molds and mostly adpressed to the surface of host gaining nutrients from sugary exudates. Subiculum well-developed, superficial, loose, comprising effuse, branched, dark brown to blackish brown, septate hyphae. Sexual morph: Ascomata superficial, embedded in subiculum or sometimes sessile on subiculum developing on the surface of the host, solitary to gregarious, globose to subglobose, cupulate when dry, uniloculate, brown to blackish brown, with periphysate ostioles, with or without papillate, covering individual hyphae, with or without setae. Wall of ascoma composed of several layers with outer layers dark brown cells to inner layers hyaline to light brown flattened cells. Hamathecium comprising filiform, hyaline, septate pseudoparaphyses or lacking. Asci 8-spored, bitunicate, fissitunicate, saccate, broadly clavate to oval, sessile or shortly pedicellate, lacking an ocular chamber, forming in a basal layer of ascoma wall. Ascospores overlapping 1−3-seriate, irregularly arranged, ellipsoid to broadly clavate, fusiform, hyaline to lightly pigmented, yellowish to brownish at maturity, 2−4-trans-septate, or muriform, slightly constricted at the septa, thin-walled, without a gelatinous sheath or appendages, eguttulate. Asexual morph: hyphomycetous (Hughes 1976, Barr 1987, Winka et al. 1998, Crous et al. 2007).

Type: Coccodinium A. Massal.