Abstract
Asexual morphs of freshwater fungi have been mostly reported from tropical and subtropical regions. From our ongoing investigation of the diversity and taxonomy of freshwater microfungi in Thailand, a country with rich natural resources and diverse ecosystems, Parafuscosporella ellipsoconidiogena sp. nov. and P. obovata sp. nov., collected from decaying submerged twigs at Phalad Waterfall in a conserved forest in Chiang Mai Zoo, Chiang Mai Province, northern Thailand, are proposed. DNA phylogenies based on a combination of ITS and LSU datasets support the placement of these species in Parafuscosporella (Fuscosporellaceae, Fuscosporellales, Sordariomycetes), and these two novel species differ from known species in terms of morphology. Detailed descriptions, illustrations and a key to Parafuscosporella species are provided, as well as comparisons with other accepted Parafuscosporella species.
Highlights
Parafuscosporella belongs to Fuscosporellaceae (Fuscosporellales, Hypocreomycetidae, Sordariomycetes) [1]
The genus is characterized by sporodochial, black colonies; partly immersed, partly superficial, septate, hyaline to pale brown mycelium; semimacronematous, mononematous, simple or branched, mostly moniliform, smooth-walled, hyaline conidiophores; monoblastic, discrete or integrated, globose, subglobose, ellipsoidal or clavate, smooth-walled, hyaline conidiogenous cells; and conidia that are ellipsoidal to broadly obpyriform, transversely septate, smooth, dark brown to black and pale brown at the basal cell [1]
The type specimens were deposited at the FUNGARIUM BIOTEC Bangkok Herbarium (BBH; https://www.nbt-microbe.org accessed on 22 September 2021), as Parafuscosporella ellipsoconidiogena BBH 49158 and
Summary
Parafuscosporella belongs to Fuscosporellaceae (Fuscosporellales, Hypocreomycetidae, Sordariomycetes) [1]. The genus is characterized by sporodochial, black colonies; partly immersed, partly superficial, septate, hyaline to pale brown mycelium; semimacronematous, mononematous, simple or branched, mostly moniliform, smooth-walled, hyaline conidiophores; monoblastic, discrete or integrated, globose, subglobose, ellipsoidal or clavate, smooth-walled, hyaline conidiogenous cells; and conidia that are ellipsoidal to broadly obpyriform, transversely septate, smooth, dark brown to black and pale brown at the basal cell [1]. Based on morphological and molecular data, the type species without sexual morph, P. moniliformis Jing Yang, Bhat & K.D. Hyde, was described on dead and decaying submerged wood in Thailand. Five accepted species, namely, P. aquatica H.
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