Felt Onnia (Onnia tomentosa)

Systematics:
  • Division: Basidiomycota (Basidiomycetes)
  • Subdivision: Agaricomycotina (Agaricomycetes)
  • Class: Agaricomycetes (Agaricomycetes)
  • Subclass: Incertae sedis (of uncertain position)
  • Order: Hymenochaetales (Hymenochetes)
  • Family: Hymenochaetaceae (Hymenochetes)
  • Genus: Onnia (Onnia)
  • Type: Onnia tomentosa (Felt onnia)

Hat: the upper surface of the cap is funnel-shaped and flat, slightly pubescent, practically not zoned. Hat color is yellowish brown. Along the edges of the cap is thinner, lobed. When dried, it wraps inwards, the bottom edge of the cap has a lighter color. The hat is 10 cm in diameter. Thickness – 1 cm. Fruiting bodies in the form of caps with a lateral and central leg.

Leg: -1-4 cm long and 1,5 cm thick, of the same color with a hat, pubescent.

Pulp: up to 2mm thick. The bottom layer is hard, fibrous, the top one is softer, felt. Light yellow-brown Onnia Felt in the upper part of the stem has a slight metallic tint. The tubular layer runs down to the stem up to 5 mm thick. The pores are rounded, with a pale brown surface, 3-5 pieces per 1 mm of the fungus surface. The edges of the pores are occasionally covered with white bloom.

Hymenophore: at first, the surface of the hymenophore is yellow-gray-brown, becoming darker brown with age.

Spread: It occurs at the base of trunks and on the roots of growing trees in undisturbed mixed spruce forests. A wood-destroying fungus that develops on the roots of larch, pine, and spruce. In conifers, this fungus causes core white rot. There is an assumption that Onnia is an indicator of the long existence of forests. It is extremely rare. Rare view. Onnia Felt is included in the red lists of Latvia, Norway, Denmark, Finland, Poland, Sweden.

The mushroom is not edible.

Similarity: Onnia is easy to confuse with a two-year-old dryer. The difference is the thicker and fleshy flesh of the onnia, and also differs in a lighter, grayish descending hymenophore and a sterile edge in the lower part of the cap of a pale yellowish color.

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