Fungalpedia – Note 279, Neoanthostomella

 

Neoanthostomella D.Q. Dai & K.D. Hyde

Citation when using this entry: Perera et al. 2024 (in prep) – Fungalpedia, genera described in 2016. 

Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig. 1

Classification: Incertae sedis, Xylariales, Xylariomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi

Dai et al. (2017) introduced Neoanthostomella with its type N. pseudostromatica. Subsequently there are four species added to the genus (Daranagama et al. 2016; Tennakoon et al. 2021). However, after examine the holotype material and based on phylogenetic analysis Samarakoon et al. (2022) confirmed that N. fici and N. viticola clustered within Anthostomella helicofissa strains. Therefore, only two species (N. bambusicola and N. pseudostromatica) can be recognized within Neoanthostomella. The genus is characterized by solitary to gregarious pseudostromata that are circular to elliptical and raised as blacked areas on the host tissue. Two to five ascomata grow together in a single pseudostroma. They are immersed, globose to subglobose, dark brown, coriaceous, with a central, periphysate, ostiolate neck. The peridium is composed of several layers of compressed, brown to hyaline cells of the textura angularis. Hamathecium of dense, long, septate, paraphyses intermixed with asci. The asci are cylindrical with a short furcate pedicel, unitunicate, 8-spored, and lack an apical ring. Ascospores are aseptate, dark brown, guttulate, smooth-walled, uni-to bi-seriate or sometimes overlapping, ellipsoid, and somewhat pointed at the ends. They also have mucilaginous sheaths. The germ slit of the ascospore is straight and extending over the full-length (Dai et al. 2017). The asexual morph is undetermined. Neoanthostomella species are saprobic in dead bamboo plant parts (Dai et al. 2017; Samarakoon et al. 2022).

Type species: Neoanthostomella pseudostromatica D.Q. Dai & K.D. Hyde

Other accepted species: 

Figure 1 – Neoanthostomella pseudostromatica (MFLU 15–1190, holotype). a Appearance of pseudostromata on bamboo host. b Vertical section of pseudostroma. c Ascus. d Ascospores. Scale bars: a = 1 mm, b = 100 μm, c, d = 5 μm. Redrawn from Dai et al. (2017).

 

References

Dai DQ, Phookamsak R, Wijayawardene NN, Li WJ et al. 2017 – Bambusicolous fungi. Fungal Diversity 82, 1–105. 

Daranagama DA, Camporesi E, Liu XZ, Jeewon R et al. 2016 – Taxonomic rearrangement of Anthostomella (Xylariaceae) based on multigene phylogenies and morphology. Cryptogamie Mycologie 37, 509–538.

Samarakoon MC, Hyde KD, Maharachchikumbura SS, Stadler M et al. 2022 – Taxonomy, phylogeny, molecular dating and ancestral state reconstruction of Xylariomycetidae (Sordariomycetes). Fungal Diversity 112, 1–88.

Tennakoon DS, Kuo CH, Maharachchikumbura SSN, Thambugala KM et al. 2021 – Taxonomic and phylogenetic contributions to Celtis formosana, Ficus ampelas, F. septica, Macaranga tanarius and Morus australis leaf litter inhabiting microfungi. Fungal Diversity 108, 1–215.

 

Entry by

Rekhani Hansika Perera, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand.

 

(Edited by Kevin D. Hyde, Samaneh Chaharmiri-Dokhaharani, & Achala R. Rathnayaka)

 

Published online 28 May 2024

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