Polyporus Umbellatus Description

Polyporus umbellatus is a "butt rot" that fruits terrestrially, abreast the bases and roots of hardwoods beyond arctic North America. It is calledly adequately attenuate on our continent, and is encountered far beneath frequently than the somewhat agnate Grifola frondosa. The fruiting physique consists of abounding small, begrimed brown, roundish caps (as against to the larger, fan-shaped and aberrant caps of Grifola frondosa); the undersurfaces are white; and the alone branches are detached anon beneath the caps but become alloyed calm into one solid anatomy below.

I accept calm Polyporus umbellatus in alone one location, at the abject of a white ash in oak-hickory woods--but the augment has appeared in the aforementioned area every year for 12 years in a row! It usually ancestor up in spring, just afterwards the morels accept disappeared, but sometimes it appears in fall, as well.

Polyporus umbellatus is sometimes called "Grifola umbellata" in earlier acreage guides--and it may anon be headed for a new brand (perhaps "Dendropolyporus"), already the DNA-informed anatomy of the brand Polyporus gets bigger settled. Additional ambiguity is aloft by Xing and collaborators (2013), who address abundant abiogenetic aberration a part of Chinese populations of Polyporus umbellatus; there may be several, or many, breed involved.