Pleosporales » Lophiostomataceae

Lophiopoacea

Lophiopoacea Ariyaw., Thambug. & K.D. Hyde, in Thambugala et al., Fungal Diversity: 10.1007/s13225-015-0348-3, [22] (2015).

Index Fungorum number: IF 551240; Facesoffungi number: FoF 00806, 2 morphological species (Species Fungorum 2022), 2 species with molecular data.

Saprobic on Poaceae species in terrestrial habitats. Sexual morph: Ascomata scattered to gregarious, immersed, coriaceous to carbonaceous, dark brown to black, surrounded by a small blackened pseudoclypeus, subglobose to conical, ostiolate. Ostiole slit-like, central, with a reduced crest and a pore-like opening, plugged by gelatinous tissue, made up of lightly pigmented, pseudoparenchymatous cells. Peridium wider at the apex, and thinner at the base, comprising several layers of lightly pigmented to dark brown, cells of textura angularis, cells towards the inside lighter and somewhat broad, at the outside, darker, fusing and indistinguishable from the host tissues. Hamathecium comprising 1.5–2.5μm wide, septate, branched, cellular pseudoparaphyses, situated between and above the asci, embedded in a gelatinous matrix. Asci 8-spored, bitunicate, fissitunicate, cylindric-clavate, pedicellate, rounded at the apex, with an indistinct ocular chamber. Ascospores uniseriate to bi-seriate, overlapping, hyaline, fusiform with narrow, acute ends, 1–5-septate, constricted at the central septum, with or without a mucilaginous sheath. Asexual morph: Unknown (adapted from Thambugala et al. 2015).

Type species: Lophiopoacea paramacrostoma Ariyaw., Thambug., Camporesi & K.D. Hyde

Notes: Lophiopoacea is characterised by coriaceous to carbonaceous, dark brown to black ascomata, cylindric-clavate, pedicellate asci and hyaline, fusiform, 1–5-septate ascospores with narrow, acute ends. Lophiopoacea morphologically resembles Lophiostoma in having immersed, coriaceous to carbonaceous ascomata surrounded by a small blackened pseudoclypeus, central slit-like ostiole, fissitunicate, cylindric-clavate, pedicellate asci and fusiform, 1–5-septate ascospores with narrow, acute ends. Lophiopoacea can be differentiated from Lophiostoma based on DNA sequence data. Lophiopoacea is a distinct and well-defined genus in Lophiostomataceae. Molecular markers available for Lophiopoacea includes LSU, SSU, TEF-1 and RPB2.

 

Recent News

Recent paper to be published

Recent Genus

Nothocladosporium
Phillipsiella
Curreya

Recent Species

Nothocladosporium syzygii
Phillipsiella atra
Curreya conorum