Species details

Milk-white toothed polypore

Irpex lacteus

Inedible
Milk-white toothed polypore – Irpex lacteus

Photo: Sarah Culliton · CC BY 4.0 · Photo source · License

Description

A whitish to cream resupinate wood fungus whose fertile surface changes from pores into numerous short teeth, giving a rasp-like appearance.

Identification features

The fruitbody lies thinly against wood; margins may turn outward to form small caps. The surface is whitish and the fertile layer changes from pores into torn teeth.

Identification checklist

Check for a whitish patch on wood and the characteristic rasp-like fertile surface with tooth-like remnants of pores.

Detailed features

Hymenophore
The surface is whitish, and the fertile layer changes from pores into ragged teeth.

Habitat

Grows on dead hardwood branches and trunks through much of the year.

Fruiting period

March, April, May, June, July, August, September, October, November

Ecology

Notes
Grows on dead hardwood branches and trunks through much of the year.

How to separate similar species

Related crust-like wood fungi can look similar; old specimens are harder to identify.

Similar species

Extended-description sources