Cataractispora Hyde et al.
Index Fungorum number: IF28328
Sexual morph: Ascomata globose, subglobose or ellipsoidal, immersed, semi-immersed or superficial, coriaceous, ostiolate, beaked, solitary, brown or black. Paraphyses hyphae-like, septate and tapering distally. Asci 8-spored, cylindrical, unitunicate, with a relatively massive J-refractive and bi-partite apical ring. Ascus wall bi-partite, with an outer layer which is discontinuous or lacking at the apex. Ascospores uni-seriate or overlapping uni-seriate, fusiform or ellipsoidal, hyaline, aseptate to multi-septate, with episporial verruculose wall ornamentations, with or without polar chambers. Ascospore appendage derived from episporial projections at the ascospore tip. The appendage accumulates within the polar chambers or ascospore polar cells and is released to form long, thread-like bipolar appendages in water. Asexual morph: Undetermined.
Notes: The genus Cataractispora was introduced by Hyde et al. (1999) with three new species and one new combination and all the species were collected from freshwater habitats. Ho et al. (2004) introduced one new species C. receptaculorum which was collected from freshwater habitats in Hong Kong, China. Five species are accepted in this genus and all species are reported from freshwater habitats around the world (Hyde 1992a; Hyde et al.1999b; Ho et al. 2004; Raja et al. 2009b).
Type species: Cataractispora aquatica Hyde et al.Mycol. Res. 103(8): 1020 (1999)
Cataractispora appendiculata Hyde et al.
Cataractispora aquatica Hyde et al.
Cataractispora bipolaris (K.D. Hyde) Hyde et al.
Cataractispora receptaculorum Ho et al.
Cataractispora viscosa Hyde et al.
Recent SpeciesNeohelicomyces submersus