Fungalpedia – Note 723, Dictyopeltella

 

Dictyopeltella. Bat. & I.H. Lima.

Citation when using this data: D. S. Marasinghe et al. 2023 (in prep.) – Fungalpedia, Ascomycota.

Index Fungorum, Facesoffungi, MycoBank, GenBank.

Classification: Micropeltidaceae, Microthyriales, Incertae sedis, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi

Colonies epiphyllous or hypophyllous on living leaves, appear as black dots. Superficial hyphae hyaline, indistinct. Sexual morph: Thyriothecia superficial, solitary, subdense, gregarious, black, flattened, circular, dimidiate, with a central ostiole. Upper wall blackish green, membranous, comprising overlapping, compact, pseudoparenchymatous hyphae with textura epidermoidea, lack of basal layer. Hamathecium composed of hyaline, filiform, evanescent, branched pseudoparaphyses with round ends. Asci bitunicate, 8-spored, cylindrical to ovoid, short pedicellate. Ascospores 2-seriate, 1-septum, hyaline, overlapping, fusiform to subclavate, constricted at the septum (Sydow 1938; Zeng et al. 2019). Asexual morph: Undetermined.

Notes: Batista (1959) introduced Dictyopeltella typifying D. domingensis as the type species. This genus is morphologically similar to Micropeltis in having greenish or bluish black thyriothecia and pseudoparaphyses (Zeng et al. 2019). However, Dictyopeltella differs in having 1-septum ascospores and branched, somewhat thick pseudoparaphyses.

Type species: Dictyopeltella domingensis (Petr. & Cif.) Bat. & I.H. Lima, Publicações Inst. Micol. Recife 56: 243 (1959)

Other accepted species: Species Fungorum – search Dictyopeltella. 

 

References

Batista AC 1959 – Monografia dos fungos Micropeltaceae. Publicações. Instituto de Micologia da Universidade do Recife 56:1–519.

Sydow H 1938 – Fungi Himalayensis. Ann Mycol 36:437–442.

Zeng XY, Wu HX, Hongsanan S et al 2019 – Taxonomy and the evolutionary history of Micropeltidaceae. Fungal Divers 97:393–436.

 

Entry by

Diana Sandamali Marasinghe, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand, Mushroom Research Foundation, 128 M.3 Ban Pa Deng T. Pa Pae, A. Mae Taeng, Chiang Mai, 50150, Thailand

 

Published online 29 August 2023

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