Fibrous fibrous (Inocybe rimosa)
- Division: Basidiomycota (Basidiomycetes)
- Subdivision: Agaricomycotina (Agaricomycetes)
- Class: Agaricomycetes (Agaricomycetes)
- Subclass: Agaricomycetidae (Agaricomycetes)
- Order: Agaricales (Agaric or Lamellar)
- Family: Inocybaceae (Fibrous)
- Genus: Inocybe (Fiber)
- Type: Inocybe rimosa (Fiber fiber)
Fiber fiber grows in deciduous and coniferous forests. Often seen in July-October.
Cap 3-8 cm in ∅, with a tubercle, straw-yellow, brownish, darker in the center, with longitudinal-radial cracks, often torn along the edge.
The pulp, with an unpleasant odor, is tasteless.
The plates are almost free, narrow, yellowish-olive. Spore powder brown. Spores are ovoid or granular.
Leg 4-10 cm long, 1-1,5 cm ∅, dense, even, of the same color with a hat, mealy on top, flaky-scaly to the base.
Mushroom poisonous. Symptoms of poisoning are the same as with the use of Patuillard fiber.