About Humidicutis mavis (G.Stev.) A.M.Young
Humidicutis mavis is a small mushroom. It has an umbonate cap 4โ5 centimetres (1.6โ2.0 inches) in diameter; the cap is initially conical, and later flattens to almost completely flat. The cap is smooth, ranges in colour from ivory to pure white, and has an ivory umbo. The cap surface is textured with radial fibres, along which the cap may split. When the cap splits along these fibres, the gills split between the splits. The stipe is hollow and white, measures 5โ6 cm (2โ2.5 in) high and 0.3โ0.6 cm thick, and may be swollen at the base. The white gills are either adnexed or free, thick or distant, and have even margins. The spore print of this species is white; the spores are hyaline, more or less oval in shape, and measure around 6โ9 x 4.5โ6 ฮผm. Fruit bodies of Humidicutis mavis grow singly or in groups during autumn and winter, from April to July. They grow in moss or among leaf litter in wet sclerophyll forest or rainforest, in temperate, subtropical or tropical climates. It has been uncommonly recorded in Queensland, New South Wales and Victoria in Australia, but is common in Tasmania. It is also found in Borneo and New Zealand, where it has been recorded from the Gisborne, Wellington, Nelson and Westland provinces.
