Bolete Mould Hypomyces chrysospermus Tul. & C. Tul. (illustrated 90% life size) Fruit body 3-stage mould that grows on Boletes, at first white and mouldy, then yellow and powdery, finally reddish-brown and pimpled (this stage is rarely seen). Spores in white stage (asexual) 10–30×5–12¼, ellipsoid, smooth; in yellow stage (asexual) 10–25×10–25¼, globose, warty, thick-walled; in final stage (sexual) 25–30×5–6¼, spindle-shaped, transparent. Habitat singly or in groups on boletes; also reported on Paxillus. Common. Not edible possibly poisonous.
