Lactarius quietus, also known as Oakbug Milkcap, is a small to medium-sized agaric that has a yellow-brown to reddish-brown cap, creamy-brown to pinkish-yellow gills and exudes creamy-white milk that remains unchanged. The milk has a mild taste at first, becoming slightly bitter after a while. Lactarius quietus is strongly associated with oak and is typically found in deciduous woodland beneath oak trees, often growing among leaf litter. It usually fruits from late summer to autumn.

Cap smooth, shiny when wet and drying to a dull matt finish, initially convex and later becoming flattened or slightly depressed. It is yellow-brown to reddish-brown and usually shows faint darker concentric zones. Gills creamy-brown to pinkish-yellow, crowded and shortly decurrent. When damaged they release creamy-white milk that does not change colour. The gills become noticeably browner with age. Stem smooth, cylindrical and similar in colour to the cap, often becoming slightly darker towards the base. The stem has no ring. Spore print pale creamy-white with a slight salmon-pink tinge.

Microscopic Features: The spores are broadly ellipsoidal, measuring 8-9 x 7-7.5μm. They are amyloid and ornamented with low warts, some of which are joined by ridges and occasional cross-connections, forming a partial but incomplete network.

Lactarius quietus on the www.first-nature.com web site.
Lactarius quietus var. incanus on the MushroomExpert.Com web site.