Anomalographis

Anomalographis comprises two species that share a pale grey- to yellow-brown crust (thallus) lacking a cortex and bearing lirelliform fruiting bodies with a pale, non-carbonised excipulum. The hymenium is clear and non-inspersed, and the Graphis-type asci contain eight hyaline, I–, 1-septate ascospores. A. madeirensis has a smooth, crystal-dusted surface, contains norstictic acid, and produces spores 8–11 μm long, whereas the newly described A. tulliensis forms a finely sorediate bark-dwelling crust, lacks detectable lichen products, and has slightly smaller spores (6–8 × 3–4 μm).^[5][4]

Superficially similar genera such as Acanthothecis, Anomomorpha, Carbacanthographis, Fissurina and Gymnographopsis differ by some combination of inspersion, muriform or iodine-positive spores, or fully carbonised exciples; the coexistence of a clear hymenium, pale excipulum and very small, thin-walled, I–, 1-septate spores is diagnostic for Anomalographis.^[5]

Anomalographis madeirensis is saxicolous, occupying shaded volcanic rock faces on Madeira, whereas A. tulliensis grows on the bases of trees in submontane rainforest at about 620 m in north-eastern Queensland; the latter record extends the genus to Australia and confirms its ability to colonise both bark and rock in humid, shaded habitats.^[4]