Xenospadicoidales » Xenospadicoidaceae


Torrentispora Hyde et al.


Sexual morph: Ascomata perithecial, non-stromatic, immersed, partially erumpent becoming superficial with only bases immersed, scattered or grouped, varying in position from upright to nearly horizontal. Venter globose, subglobose to conical, glabrous or sparsely clothed with hairs. Neck rostrate or cylindrical, without sulcations at the apex, dark brown, glabrous or hairy, upright or lying horizontally on the host. Ostiole periphysate. Ascomatal wall fragile, two-layered, with layers of cylindrical cells in surface view. Paraphyses becoming partially disintegrated, tapering, septate. Asci unitunicate, cylindrical, stipitate, 8-spored, apex with a non-amyloid, massive, refractive apical annulus. Ascospores ellipsoidal, ellipsoidal-fusiform or fusiform, or rarely cymbiform to cylindrical, often flattened on one side, sometimes slightly curved, hyaline, aseptate or with several transverse septa at maturity, thick-walled, smooth-walled or with a fibrillar sheath. (Réblová et al. 2018). Asexual morph: Undetermined.

Type species: Torrentispora fibrosa Hyde et al., Mycol. Res. 104(11): 1399 (2000)

Notes: Hyde et al. (2000) introduced the genus Torrentispora with single species, T. fibrosa. Réblová et al. (2018) revisited Torrentispora with nine species in this genus and assigned it to the new family Xenospadicoidaceae within the new order Xenospadicoidales based on morphology and DNA sequence data. Torrentispora comprises seven species from freshwater habitats.


Freshwater species:

Torrentispora aquatica (Vijaykr. et al.) Réblová & A.N. Mill

Torrentispora biatriispora (K.D. Hyde) Réblová & A.N. Mill.

Torrentispora calembola Réblová & A.N. Mill.

Torrentispora crassiparietis Fryar & K.D. Hyde

Torrentispora fibrosa Hyde et al.

Torrentispora fusiformis Fryar & K.D. Hyde

Torrentispora pilosa Shearer & F.R. Barbosa



Hyde KD, Ho WH, Jones EBG, Tsui CKM, Wong WSW (2000) Torrentispora fibrosa gen. sp. nov. (Annulatascaceae) from freshwater habitats. Mycol Res 104:1399–1403

Luo ZL, Hyde KD, Liu JK, Maharachchikumbura SSN et al. 2019 – Freshwater Sordariomycetes. Fungal Diversity 99, 451–660.

Réblová M, Miller A, Reblová K, Štepánek V. 2018 – Phylogenetic classification and generic delineation of Calyptosphaeria gen. nov., Lentomitella, Spadicoides and Torrentispora (Sordariomycetes). Studies in Mycology 89, 1‒62.


About Freshwater Fungi

The webpage Freshwater Fungi provides an up-to-date classification and account of all genera of freshwater fungi.


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