Pleosporales » Pleomonodictydaceae

Pleomonodictys

Pleomonodictys Hern.-Restr., J. Mena & Gené, Stud Mycol 86: 77 (2017)

 

Saprobic on submerged wood or dead bark in freshwater or terrestrial habitats. Sexual morph: Undetermined. Asexual morph: Colonies effuse, black. Mycelium partly immersed or partly superficial, composed of branched, septate, nodulose, smooth or verruculose hyphae. Conidiophores micronematous or semi-macronematous, often reduced to conidiogenous cells, terminal or intercalary.

Conidiogenous cells blastic. Conidia muriform, variable in shape, dark brown to black, solitary or in short chains, verrucose or tuberculate (Description from Hernández-Restrepo et al. 2017).

 

Type species: Pleomonodictys descalsii Hern.-Restr. et al.

 

Notes: Pleomonodictys was introduced to accommodate two monodictys-like species which differ from Monodictys S. Hughes by verrucose to tuberculate conidia and/or hyphae (Cai et al. 2006; Hernández-Restrepo et al. 2017). The type species of Monodictys, M. putredinis (Wallr.) S. Hughes, lacks sequence data and was reported as the asexual morph of Ohleria brasiliensis Starbäck based on culture methods (Samuels 1980); molecular data are needed to clarify the placement of Monodictys. Pleomonodictys capensis (R.C. Sinclair, Boshoff & Eicker) Hern.-Restr. et al. was found from freshwater habitats, but not confirmed by molecular data (Ho et al. 2001). (Notes from Dong et al. 2020)

 

List of freshwater Pleomonodictys species

Pleomonodictys capensis (R.C. Sinclair, Boshoff & Eicker) Hern.-Restr., J. Mena & Gené, Stud Mycol 86: 77 (2017)

Basionym: Monodictys capensis R.C. Sinclair, Boshoff & Eicker, Mycotaxon 59: 359 (1996)

Freshwater distribution: Brunei (Ho et al. 2001)

 

References

Cai L, Hyde KD, Tsui CKM (2006) Genera of freshwater fungi. Fungal Diversity Research Series, vol 18

Dong W, Wang B, Hyde KD, McKenzie EHC, Raja HA, Tanaka K, Abdel-Wahab MA, Abdel-Aziz FA, Doilom M, Phookamsak R, Hongsanan S, Wanasinghe DN, Yu X-D, Wang G-N, Yang H, Yang J, Thambugala KM, Tian Q, Luo Z-L, Yang J-B, Miller AN, Fournier J, Boonmee S, Hu D-M, Nalumpang S, Zhang H (2020) Freshwater Dothideomycetes. Fungal Divers 105:319–575

Hernández-Restrepo M, Gené J, Castañeda-Ruiz RF, Mena-Portales J, Crous PW, Guarro J (2017) Phylogeny of saprobic microfungi from Southern Europe. Stud Mycol 86:53–97

Ho WH, Hyde KD, Hodgkiss JI, Yanna (2001) Fungal communities on submerged wood from streams in Brunei, Hong Kong, and Malaysia. Mycol Res 105:1492–1501

Samuels GJ (1980) Ascomycetes of New Zealand 1. Ohleria brasiliensis and its Monodictys anamorph, with notes on taxonomy and systematics of Ohleria and Monodictys. N Z J Bot 18:515–523

 

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