Pleosporales » Phaeoseptaceae

Pleopunctum

Pleopunctum N.G. Liu, K.D. Hyde & J.K. Liu

Index Fungorum number: IF 556522; Facesoffungi number: FoF 06113

 

Saprobic on decaying wood in terrestrial or submerged wood in freshwater habitats. Sexual morph: Undetermined. Asexual morph: Hyphomycetous. Colonies clustered in several small groups or gregarious, sporodochial, punctiform, brown to black, shining. Mycelium immersed in the substratum, composed of septate, branched, subhyaline to greyish brown hyphae. Conidiophores macronematous, mononematous, cylindrical, branched, or unbranched, septate, medium brown, smooth-walled, thick-walled. Conidiogenous cells holoblastic, monoblastic, cylindrical, brown. Conidia acrogenous, solitary, muriform, constricted at septa, broadly oval to ellipsoidal, variable in shape, smooth-walled, pale brown to dark brown, often with a hyaline, ellipsoidal to globose basal cell. (Descriptions from Dong et al. 2020)

 

Type species: Pleopunctum ellipsoideum N.G. Liu, K.D. Hyde & J.K. Liu

 

Notes: Pleopunctum was introduced to accommodate two terrestrial species, P. ellipsoideum N.G. Liu et al. and P. pseudoellipsoideum N.G. Liu et al., collected from decaying wood in China (Liu et al. 2019). Pleopunctum is characterized by muriform, oval to ellipsoidal conidia often with a hyaline, elliptical to globose basal cell (Liu et al. 2019). Pleopunctum, the only hyphomycetous genus, formed a wellsupported and distinct clade in Phaeoseptaceae (Liu et al. 2019). We collected P. pseudoellipsoideum from submerged wood in China. (Notes from Dong et al. 2020)

 

List of freshwater Pleopunctum species

Pleopunctum pseudoellipsoideum N.G. Liu, K.D. Hyde & J.K. Liu, Mycosphere 10 (1): 768 (2019)

Freshwater distribution: China (Dong et al. 2020)

 

References

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 Diversity 105:319–575

Liu NG, Hyde KD, Bhat DJ, Jumpathong J, Liu JK (2019) Morphological and phylogenetic studies of Pleopunctum gen. nov. (Phaeoseptaceae, Pleosporales) from China. Mycosphere 10:757–775

 

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