High Quality Content by WIKIPEDIA articles! Tricholoma pardinum, commonly known as spotted tricholoma, tiger tricholoma, tigertop or dirty trich, is a gilled mushroom widely distributed across North America and Europe, as well as parts of Asia. It is generally found in beech woodland in summer and autumn. It is an imposing mushroom with a pale grey cap up to 10 cm (4 in) in diameter with darker brownish or greyish scales, white gills and white or pale grey-brown ringless stalk.