Sarcodontia uda is a species of crust fungus in the family Meruliaceae. It is commonly known as the yellow toothcrust due to its yellowish colour and toothed fertile surface.
Description Sarcodontia uda forms resupinate fruiting bodies that spread across wood surfaces. The fertile surface is yellow to orange-yellow and develops tooth-like or spiny projections with age. The fungus has a soft to somewhat waxy texture when fresh.
Range The species has been recorded from Europe, Asia, and North America.
Habitat It grows on decaying hardwood, especially old fruit trees such as apple and pear, where it causes wood decay.
Ecology Sarcodontia uda is a saprotrophic fungus that decomposes dead or weakened wood. It is associated with white rot in hardwood trees.
Etymology The genus name Sarcodontia refers to the fleshy tooth-like structures of the fungus, while the specific epithet uda originates from the original species description by Elias Magnus Fries.
Taxonomy The species was originally described by Elias Magnus Fries and later transferred to the genus Sarcodontia by mycologist Viacheslav Spirin.
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