Lophiotrema
Lophiotrema Sacc., Michelia 1 (no. 3): 338. (1878).
Index Fungorum number: IF 2934; Facesoffungi number: FoF 08285, 38 morphological species (Species Fungorum 2022), 8 species with molecular data.
Saprobic on host. Sexual morph: Ascomata scattered, erumpent to nearly superficial, with basal wall remaining immersed in host tissue, globose, subglobose, frequently laterally flattened, with a flattened base, black, roughened, frequently bearing remnants of wood fibres; with a cylindrical or laterally compressed papilla. Peridium laterally thick, very thin at the base, composed of heavily pigmented pseudoparenchymatous cells near the apex, wall thick, near apex composed of pigmented cells of textura angularis, apical wall composed of heavily pigmented and thick-walled small cells. Hamathecium of dense, very long septate pseudoparaphyses, anastomosing and branching between and above asci, embedded in gel matrix. Asci 8-spored, bitunicate, fissitunicate, cylindrical, with a short, narrowed, furcate pedicel with a small ocular chamber. Ascospores obliquely uniseriate and partially overlapping to biseriate, broad fusiform, fusiform to narrowly fusiform, with narrowly rounded ends, hyaline and lightly pigmented on very rare occasions when senescent, uniseptate, 3-septate when old, deeply constricted at the median septum, the upper cell often broader than the lower one. Asexual morph: Unknown (adapted from Zhang et al. 2009).
Type species: Lophiotrema nucula (Fr.) Sacc.
Notes: Lophiotrema is characterised by oblong to fusiform, one- to multi-septate, hyaline ascospores. Chesters and Bell (1970) considered Lophiotrema as a synonym of Lophiostoma. Lophiotrema differs from Lophiostoma in having a peridium consisting of an outer textura angularis of uniformly pigmented cells and an inner layer of small, hyaline cells, with somewhat thickened walls (Holm & Holm 1988), and cylindrical or oblong asci (Holm & Holm 1988, Tanaka & Harada 2003). Holm and Holm (1988) included only the type species L. nucula and two closely related taxa in Lophiotrema. This concept was followed by several authors (Barr 1990, Yuan & Zhao 1994, Kirk et al. 2008). Hirayama and Tanaka (2011) transferred Lophiotrema from Lophiostomataceae to Lophiotremataceae. Lophiotrema has a pycnidial asexual morph (Tanaka & Harada 2003). Molecular markers available for Lophiotrema are ITS, LSU, SSU, RPB2 and TEF-1.
Recent News
Recent paper to be publishedRecent Genus
NothocladosporiumPhillipsiella
Curreya
Recent Species
Nothocladosporium syzygiiPhillipsiella atra
Curreya conorum
