Friedrich Staude

Armillaria is a genus of fungi that includes the A. mellea species ('honey fungus') that live on trees and woody shrubs. It includes about 10 species formerly categorized summarily as A. mellea. Armillaria sp. are long-lived and form the largest living fungi in the world. The largest known specimen (an A. ostoyae) covers more than 3.4 square miles (8.8 km2) in Oregon and is estimated to be 2,500 years old. Some species of Armillaria display bioluminescence. Armillaria can be a destructive forest pathogen. It causes "white rot" root disease. As it feeds on dead plant material, it can kill its

Clitocybe is a genus of mushrooms characterized by white, off-white, buff, cream, pink, or light-yellow spores, gills running down the stem, and pale white to brown or lilac coloration. They are primarily saprotrophic, decomposing forest ground litter. There are estimated to be around 300 species in the widespread genus. Clitocybe means sloping head. A few members of the genus are considered edible; many others are poisonous, containing the toxin muscarine among others. Distinguishing individual species of Clitocybe is generally prohibitively difficult to non-experts, requiring the analysis

Collybia (in the strict sense) is a genus of mushrooms in the family Clitocybaceae. The genus has a widespread distribution in northern temperate areas, and contains well known species like the blewit, sordid blewit, and frosty funnel, as well as various species that grow on the decomposing remains of other mushrooms. The name Collybia means "small coin".

Crepidotus mollis, commonly known as the peeling oysterling, soft slipper, jelly crep, or flabby crepidotus, is a species of mushroom. It is regarded as inedible.

Crepidotus is a genus of fungi in the family Crepidotaceae. Species of Crepidotus all have small, convex to fan-shaped sessile caps and grow on wood or plant debris. The genus has been studied extensively, and monographs of the North American, European, and Neotropical species have been published.

Omphalina is a genus of small agarics with white, nonamyloid, basidiospores and decurrent gills. Typically the cap has a deep central depression giving the umbrella-like to funnel-shaped cap the appearance of a belly button, or a belly with a navel. Similarly-shaped agarics are said to be omphalinoid in appearance.