Lawreya
Lawreya Ertz, Common, Diederich & U. Braun, in Diederich et al., Plant and Fungal Systematics 64(2): 258 (2019).
Index Fungorum number: IF 831999 Facesoffungi number: FoF 11385, 1 morphological species (Species Fungorum 2022), 1 species with molecular data.
Mycelium immersed; hyphae sparse, septate, subhyaline to pigmented, wall smooth. Sexual morph: Unknown. Asexual morph: Conidiomata initially small, internal, flattened, sporodochioid, pulvinate, colourless; later turning brown, becoming stromatic, immersed to erumpent, compact, macroscopically black, size and shape variable, subglobose, hemispherical, applanate to irregularly shaped; stromatic cells subcircular to angular-irregular in outline; during maturation, with few or numerous subspherical, almost superficial conidiogenous loculi, giving the upper surface a moriform appearance, made of bulbil-like structures; when fully mature, these bulbil-like loculi open irregularly, the conidioma surface being macroscopically sometimes centrally dented but without a deep cavity, i.e. not distinctly cupulate. Conidiogenous cells not evident, conidia formed from colorless or pale swollen hyphal cells arranged within conidiogenous loculi; conidiogenesis thallic, possibly meristem thallic. Conidia solitary, reminiscent of chlamydospores, subglobose to mostly angular-irregular, simple, brown, wall rather thick and ± smooth (adapted from Diederich et al. 2019).
Type species: Lawreya glyphidiphila U. Braun, Common, Diederich & Ertz
Notes: Lawreya is characterised by small, internal, flattened, sporodochioid, pulvinate conidiomata, colorless or pale swollen hyphal cells and solitary conidia similar to chlamydospores, subglobose to mostly angular-irregular, simple, brown. Lawreya differs from Sclerococcum in having a well-developed stroma, simple, medium to dark brown, smooth conidia and bulbil-like conidiogenous loculi. Lawreya is morphologically and phylogenetically a distinct genus in Teratosphaeriaceae. Only LSU sequence data is available for Lawreya.
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