Aquaphila Goh, K.D. Hyde & W.H. Ho, Mycol. Res. 102(5): 588 (1998)

Saprobic onsubmerged woody substrates, widespread in tropical regions.Mycelialcolonies partly developed inside wood and partly on wood surface. Sexual state: Ascomata superficial, gregarious, globose to subglobose, dark brown to black, with brown setae, straight, thick-walled, tapering to an acute apex. Peridium outer layer of textura angularis comprising black-walledcells, cell of inner layer, elongate, pale brown to subhyaline. Pseudoparaphysesfiliform, ca. 2 mm wide, hyphae-like, branched, hyaline. Asci 8-spored, bitunicate, cylindroclavate, with long pedicels, apically rounded. Ascospores 2–3-seriate, cylindrical fusiform, 7-transverse septa, hyaline to pale brown, smooth (from Tsui et al. 2007). Asexual state:Conidiophores semi-macronematous, mononematous, borne as lateral branches from superficial hyphae, hyaline, delicate, septate, simple or branched, flexuous to geniculate. Conidiogenous cells integrated, terminal or intercalary, denticulate, monoblastic or polyblastic, proliferation sympodial, indeterminate. Conidial secession schizolytic. Conidia borne singly, acrogenous and becoming lateral as a result of conidiophore proliferation, hyaline, fusoid to falcate or sigmoid, broad, multi-euseptate, apedicellate (from Goh et al. 1998).

Notes: Clade J represents Aquaphila and comprises species with darkly pigmented ascomata covered by dark setae, cylindrical-clavate and apically thickened asci, and fusiform 6–7-septate ascospores. The asexual form occurs in an aquatic habitat and produces curved conidia that are distinct from the type species in the sister genus Chlamydotubeufia, C. huaikangplaensisthat produces dictyochlamydospores (Tsui et al. 2007; Boonmee et al. 2011) and other Tubeufia species. The ex-type strain of Tubeufia asiana (BCC 3463) clusters in Clade J with Aquaphila albicans Goh, K.D. Hyde & W.H. Ho, with robust support (100% BS and 1.00 PP). Tubeufia asiana was introduced as the asexual state of Aquaphila albicans by Tsui et al. (2007). Our phylogenetic analysis shows it to clusters far from Tubeufia sensu stricto;Aquaphila albicans is the older name and thus Tubeufia asiana is a synonym.

Type species:Aquaphila albicans Goh, K.D. Hyde & W.H. Ho, Mycol. Res. 102(5): 588 (1998)

Tubeufia asiana Sivichai & K.M. Tsui, Mycologia 99(6): 885 (2008) [2007]