About Lentinellus ursinus (Fr.) Kühner
Lentinellus ursinus (Fr.) Kühner is a fungus species in the family Auriscalpiaceae. Its caps measure 2–10 centimetres (1–4 inches) wide, and are often split into separate lobes. The cap center is brown, and the color fades to white at the cap margin. This species produces a white spore print. Microscopy may be needed to tell Lentinellus ursinus apart from L. angustifolius. One lookalike from a different genus is Pleurotus ostreatus. In North America, it can be found growing from October to March on the West Coast, and from July to October in other parts of the region. Like all species in the genus Lentinellus, Lentinellus ursinus is inedible because it has a bitter taste.
