Monodictys cellulosa
Colonies lichenicolous, scattered or in small clusters, visible as minute black radiating chains of propagules. Stroma not clearly defined. Conidiophores immersed to superficial, not well distinguished from vegetative tissue, the hyphae becoming somewhat broader and darker, with slightly thicker walls. Conidiogenous cells integrated, terminal, monoblastic, the conidiogenous loci undifferentiated. Conidia singl or in unbranched or rarely branched chains, irregular, disarticulating, conidia (30-) 60-80 x (20-) 30-40 (to ca 120 x 50) µm, shape and size very variable, mostly ovoid to clavate or subcylindrical, usually strongly muriform, the ends ± rounded or with the apex beaked, sometimes forming irregular aggregations, dark brown or olivaceous, distinctly olivaceous in KOH, wall to ca 2 μm thick, smooth or faintly rugose.
Teleomorph: not known.
Unknown; only known from a single site but very likely to be overlooked.
Currently treated as a plurivorous species that also occurs on rotten wood, but molecular data are lacking and cryptic species may occur.
On thalli of various lichens, including Buellia pulverea, Hypogymnia physodes, Lecidea grisella, Phaeophyscia orbicularis and Scoliciosporum chlorococcum, sometimes (at least) not causing visible damage to the host.
Reported from VC3 S Devon, VC18 S Essex, VC25 E Suffolk, VC46 Cardigan, VC48 Merioneth and VC87 W Perthshire. Almost certainly much under-recorded.