Agaricus arorae is a moderate-sized, forest-dwelling mushroom that exhibits distinctive color changes. It fruits early in the mushroom season. Unusually within the genus Agaricus, the mushroom's cap cuticle turns yellow when exposed to a base such as potassium hydroxide or sodium hydroxide but stains red when cut. In the field, it has a brownish, fibrillose/squamulose cap, which turns red when bruised. Agaricus arorae was first described from Santa Cruz County but since has been found in San Mateo and Alameda counties. Agaricus arorae can be distinguished by its scales and a conspicuous stipe.
Cortinarius anomalus, also known as the variable webcap, is a basidiomycete fungus of the genus Cortinarius. It produces a medium-sized mushroom with a grayish-brown cap up to 5 cm (2 in) wide, gray-violet gills and a whitish stem with pale yellow belts below. The mushroom grows solitarily or in scattered groups on the ground in deciduous and coniferous forests. It is found throughout the temperate zone of the northern hemisphere.
Lepiota castaneidisca is a species of agaric fungus in the family Agaricaceae. Formally described in 1912, it was for a long time considered the same species as the similar Lepiota cristata until molecular analysis reported in 2001 demonstrated that it was genetically distinct. It is most common in coastal and northern California, and has also been recorded in Mexico. A saprobic species, it is usually found under redwood and Monterey cypress. Its fruit bodies (mushrooms) have white caps with an orange-red to orange-brown center that measure up to 3.2 cm (1.3 in) wide. The cream-colored to light pink stems are up to 6.5 cm (2.6 in) long by 0.2–0.6 cm (0.1–0.2 in) thick, and have a ring. L. castaneidisca can be distinguished from other similar Lepiota species by differences in habitat, macroscopic, or microscopic characteristics.
Leucocoprinus acutoumbonatus is a species of mushroom producing fungus in the family Agaricaceae.
Leucocoprinus pusillus is a species of mushroom producing fungus in the family Agaricaceae.
Leucocoprinus muticolor is a species of mushroom producing fungus in the family Agaricaceae.
Leucocoprinus viridiflavus is a species of mushroom producing fungus in the family Agaricaceae. It may also be known as Leucoagaricus viridiflavus.
Leucocoprinus viridiflavoides is a species of mushroom producing fungus in the family Agaricaceae. It may still be known as Leucoagaricus viridiflavoides.
Leucoagaricus lacrymans is a species of mushroom producing fungus in the family Agaricaceae.
Leucocoprinus antillarum is a species of mushroom producing fungus in the family Agaricaceae.
Leucocoprinus fuligineopunctatus is a species of mushroom producing fungus in the family Agaricaceae.
Leucocoprinus microlepis is a species of mushroom producing fungus in the family Agaricaceae.
Leucoagaricus tricolor is a species of mushroom producing fungus in the family Agaricaceae.
Leucocoprinus domingensis is a species of mushroom producing fungus in the family Agaricaceae.
Leucocoprinus parvipileus is a species of mushroom producing fungus in the family Agaricaceae.
Leucocoprinus tephrolepis is a species of mushroom producing fungus in the family Agaricaceae.
Leucoagaricus flavus is a species of mushroom-producing fungus in the family Agaricaceae.
Leucoagaricus croceovelutinus is a species of mushroom-producing fungus in the family Agaricaceae.
Leucoagaricus croceus is a species of mushroom-producing fungus in the family Agaricaceae.
Leucoagaricus laosensis is a species of mushroom-producing fungus in the family Agaricaceae.
