Fungalpedia – Note 2686, Diplolaeviopsis

 

Diplolaeviopsis Giralt & D. Hawksw. 

Citation when using this data: Meng QF et al. – Fungalpedia.  

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

Classification: Cordieritidaceae, Helotiales, Leotiomycetes, Pezizomycotina, Ascomycota, Fungi

Diplolaeviopsis was established by Giralt et al. (1991) to describe a pycnidial fungus ranging from commensalistic to pathogenic on the apothecia and thalli of Lecanora strobilina. This genus is characterized by pycnidial conidiomata that are solitary, unilocular, immersed but erupting, subglobose to cup-shaped, dark brown to black, and ostiolate, with an angular texture composed of olive-brown, pseudoparenchymatous cells. The conidiophores are subglobose to subcylindrical, simple or sparsely branched, somewhat hyaline, or sometimes absent. The conidiogenous cells are acrogenous, subcylindrical, occasionally with enteroblastic proliferations, and hyaline. The conidia are holoblastic, solitary, elongate-soleiform to frog-shaped, hyaline, 1(–2)-septate, constricted at the septum, and smooth (Giralt et al. 1991).

Phylogenetic analyses by Etayo et al. (2015) and Suija et al. (2015b) revealed that Diplolaeviopsis clusters within the Helotiales clade. Further analysis by Pärtel et al. (2017) confirmed the genus placement within Cordieritidaceae (Helotiales), which was subsequently accepted by Wijayawardene et al. (2018). Since its establishment, three additional species have been introduced, resulting in four recognized species to date. Of these, only Diplolaeviopsis ranula has sequence data available in GenBank. 

Type species: Diplolaeviopsis ranula Giralt & D. Hawksw.

Other accepted species: Species Fungorum – search Diplolaeviopsis.

Figure 1 – Diplolaeviopsis ranula redrawn from Giralt et al. (1991). a Infected apothecium of Lecanora strobilina. b Vertical section of conidioma. c Vertical section of wall of conidioma. d Conidiogenolls cells and conidiophores. e Conidia. Scale bars: a = 250 μm, b = 50 μm, c, d = 10 μm, e = 5 μm.

 

References

Etayo J, Flakus A, Suija A, Kukwa M. 2015 – Macroskyttea parmotrematis gen. et sp. nov. (Helotiales, Leotiomycetes, Ascomycota), a new lichenicolous fungus from Bolivia. Phytotaxa 224 (3), 247–257.

Giralt M, Hawksworth D. 1991 – Diplolaeviopsis ranula, a new genus and species of lichenicolous coelomycetes growing on the Lecanora strobilina group in Spain. Mycological Research 95 (6), 759–761.

Pärtel K, Baral H-O, Tamm H, Põldmaa K. 2017 – Evidence for the polyphyly of Encoelia and Encoelioideae with reconsideration of respective families in Leotiomycetes. Fungal Diversity 82, 183–219.

Suija A, Ertz D, Lawrey JD, Diederich P. 2015b – Multiple origin of the lichenicolous life habit in Helotiales, based on nuclear ribosomal sequences. Fungal Diversity 70 (1), 55–72.

Wijayawardene NN, Hyde KD, Lumbsch HT, Liu JK et al. 2018 – Outline of Ascomycota: 2017. Fungal Diversity 88 (1), 167–263.

 

Entry by

Meng QF, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand and School of Public Health, Zunyi Medical University, Guizhou 563000, China.

 

Published online 8 July 2026

Back to Glossary Index Page