Cortinarius flexipes, also known as Pelargonium Webcap, is a small to medium agaric with a distinctive and delicate appearance. This mushroom features a conical to bell-shaped cap that varies in colour from pale brown to greyish-brown, often with a silvery sheen when young. Found primarily in deciduous and coniferous woodlands during autumn, Cortinarius flexipes is noted for its subtle, pelargonium-like odour when crushed.

Cap dark grey to violet-brown when moist, becoming pale fawn when dry. The surface is covered with white scales, with a somewhat pallid margin that is initially covered with a veil, later only marginal remnants or becoming more or less smooth. Initially bluntly conical, the cap expands and becomes bluntly umbonate. The flesh is pale, concolourous, and thin. Gills adnate and moderately crowded, sometimes with slightly toothed edges, the gills are at first greyish buff, gradually maturing to rust brown. Stem brownish, faintly tinged with violaceous at the apex, smooth above, with whitish belted scaly velar remnants below. It is fibrous, stuffed, and solid. Spore print rust-brown.

Microscopic Features: Spores are broadly ellipsoidal to subglobose with a minutely roughened surface, measuring 7.5-9 x 5-6.5 µm, and are inamyloid.

Cortinarius flexipes on the First Nature Web site.