About Cortinarius rotundisporus Cleland & Cheel
The cap of Cortinarius rotundisporus ranges from 2.5 to 7 cm (1â3 in) in diameter, starting convex before becoming flat. It has a slight central boss that is mustard, honey, or cream-yellow, while the rest of the cap is steely blue. The adnate gills are creamy or lilac-tinged when young, and darken as spores develop. The slender stipe measures 5â7.5 cm (2â3 in), has no ring, and is pale yellow or white with a tint matching the cap color. The flesh is yellowish and may have a lilac or pale blue tinge. The spore print is reddish brown, and the oval to round spores measure 8.5 à 6.5 Ξm. This species has no distinctive taste or odor. A potassium hydroxide test produces a pink-purple reaction in the stipe or cap, and the mycelium is white. In terms of distribution and habitat, C. rotundisporus has been found in New South Wales, Victoria, southeastern South Australia, southern Western Australia, and Tasmania, and has also been recorded in New Zealand. Its fruit bodies grow in eucalypt forests and rainforests, and occasionally in cleared areas. It forms associations with Eucalyptus and Leptospermum, and possibly with Casuarina.
