Pleosporales

Lophiotremataceae

Lophiotremataceae K. Hiray. & Kaz. Tanaka
Index Fungorum number: IF 561063

 

Sexual morph: Ascomata subglobose to globose, scattered to crowded. Beak compressed, with a slit-like ostiole. Ascomatal wall composed of pale brown, small, thin-walled cells. Pseudoparaphyses filamentous, numerous, septate, branched, anastomosing. Asci fissitunicate, cylindrical, with a short stipe or sessile, rounded at the apex, with an apical chamber. Ascospores fusiform to cylindrical, 1- to multi-septate, hyaline to brown, with or without an entire gelatinous sheath. (Description from Hirayama and Tanaka 2011)

 

Type genus: Lophiotrema Sacc.

 

Notes: As originally circumscribed Lophiotremataceae was a monotypic family comprising the genus Lophiotrema (Zhang et al. 2009, Hirayama & Tanaka 2011, Hyde et al. 2013). A somewhat broader familial concept for Lophiotremataceae was adopted by Doilom et al. (2016) and Tibpromma et al. (2016), who considered the family to comprise Aquasubmersa, Hermatomyces, and Lophiotrema on the basis of phylogenetic studies. However, the results of morphological examination and phylogenetic analyses using SSU, ITS, LSU, tef1, and rpb2 sequences suggest that this family encompasses Lophiotrema and five new genera.

 

Because Aquasubmersa and Hermatomyces were placed outside of Lophiotremataceae in phylogenetic tree, we treat these genera as belonging to the families Aquasubmersaceae and Hermatomycetaceae, respectively. One species of Lophiotrema (L. lignicola) grouped with Atrocalyx, a new genus in Lophiotremataceae, while two species (Lophiotrema boreale and L. brunneosporum) were placed outside of Lophiotremataceae entirely.

 

Marincowitz et al. (2008) have suggested that ‘Massarina albocarnis’ (CBS 119345) has a phylogenetic affinity with Lophiotrema based on BLAST results involving ITS and LSU sequences. However, Beier et al. (2015), who observed the holotype specimen of M. albocarnis, has indicated that this species belongs to Diaporthe (Sordariomycetes). The isolate CBS 119345 may thus be misidentified. Unfortunately, we were unable to examine any morphological features of CBS 119345 because it did not sporulate in culture. (Notes from Hirayama and Tanaka 2011)

 

References

Beier GL, Hokanson SC, Bates ST, et al. (2015) Aurantioporthe corni gen. et comb. nov., an endophyte and pathogen of Cornus alternifolia. Mycologia 107: 66–79

Doilom M, Dissanayake AJ, Wanasinghe DN, et al. (2016) Microfungi on Tectona grandis (teak) in Northern Thailand. Fungal Diversity 82: 107–182

Hashimoto A, Matsumura M, Hirayama K, Tanaka K. (2017) Revision of Lophiotremataceae (Pleosporales, Dothideomycetes): Aquasubmersaceae, Cryptocoryneaceae, and Hermatomycetaceae fam. nov. Persoonia: Molecular Phylogeny and Evolution of Fungi 39:51.

Hirayama K, Tanaka K. (2011) Taxonomic revision of Lophiostoma and Lophiotrema based on reevaluation of morphological characters and molecular analyses. Mycoscience. 52(6): 401-12.

Hyde KD, Jones EBG, Liu JK, et al. (2013) Families of Dothideomycetes. Fungal Diversity 63: 1–313

Marincowitz S, Crous PW, Groenewald JZ, et al. (2008) Microfungi occurring on Proteaceae in the Fynbos. CBS Biodiversity Series 7: 1–166. CBS Fungal Biodiversity Centre, Utrecht, The Netherlands

Tibpromma S, Bhat JD, Doilom M, et al. (2016) Three new Hermatomyces species (Lophiotremataceae) on Pandanus odorifer from Southern Thailand. Phytotaxa 275: 127–139

Zhang Y, Wang HK, Fournier J, et al. (2009) Towards a phylogenetic clarification of Lophiostoma / Massarina and morphologically similar genera in the Pleosporales. Fungal Diversity 38: 225–251

 

Recent Genus

1
Neochlamydotubeufia
Neohelicomyces

Recent Species

Neohelicomyces submersus
Neohelicomyces hyalosporus
Neohelicomyces grandisporus