Climacocystis northern (Climacocystis borealis)
- Department: Basidiomycota (Basidiomycetes)
- Subdivision: Agaricomycotina (Agaricomycetes)
- Class: Agaricomycetes (Agaricomycetes)
- Subclass: Incertae sedis (undefined)
- Order: Polyporales
- Family: Fomitopsidaceae (Fomitopsis)
- Genus: Climacocystis (climacocystis)
- Species: Climacocystis borealis (Northern climacocystis)
- Abortiporus borealis
- Spongipellis borealis
- Polyporus borealis
Description: Fruiting body about 4-6 cm wide and 7-10 cm long, laterally accreted, oval-elongated, without a stem or with a narrowed base and a short elongated leg, with a rounded thick edge, later thin, from above tomentose-fleecy, rough, warty, creamy, pinkish-yellowish, later tuberous-tomentose and almost white in dry weather.
The tubular layer is coarsely porous, the pores are irregularly shaped, often elongated, sinuous, tubes about 0.5 cm long, with thick walls, with a wide sterile edge, creamy, lighter than the cap.
The pulp is fleshy, dense, watery, whitish or yellowish, with a pleasant or sharp sparse odor
Distribution: Lives from early September to late autumn (late October) on living and dead conifers (spruce), in the lower part and at the base of trunks, on stumps, in a tiled group, not often. Annual fruiting bodies cause white spotted rot
Grade: Edible not known.
Photo of the fungus Climacocystis northern from the questions in recognition: