Mycena carmeliana is distinguished by its orange basal disc. Grows in groups on rotting wood and woody litter. Caps to 20 mm, pale greyish brown to paler margin; convex, flattening out, viscid, with tiny wrinkles or grooves. Gills close, free; spore print white. Stems curved, slender, pale at top, darkening towards base; small hairs towards base. Stem ends abruptly at an orange, striate disc. There is an ammonia-like odour or "bleach" odour. I think it's found only in Australia-NZ. Mt Drummer Rainforest Walk, Cann River, 2008.