Blood-reddish webcap (Cortinarius semisanguineus) photo and description

Blood-reddish webcap (Cortinarius semisanguineus)

  • Department: Basidiomycota (Basidiomycetes)
  • Subdivision: Agaricomycotina (Agaricomycetes)
  • Class: Agaricomycetes (Agaricomycetes)
  • Subclass: Agaricomycetidae (Agaricomycetes)
  • Order: Agaricales (Agaric or Lamellar)
  • Family: Cortinariaceae (Spiderwebs)
  • Genus: Cortinarius (Webcap)
  • Species: Cortinarius semisanguineus (Blood-reddish webcap)

Other names:

  • Blood-reddish webcap

  • Red-plate webcap

  • Webcap half-red

Blood-reddish webcap

The red-lamellar or blood-reddish webcap ( lat.Cortinarius semisanguineus ) is a species of fungi that belongs to the genus Cortinarius of the Cortinariaceae family.

Red-plate spiderweb cap:

Bell-shaped in young mushrooms, with age it very quickly acquires a "half-open" shape (3-7 cm in diameter) with a characteristic central tubercle, in which it stays until old age, sometimes only cracking at the edges. The color is rather changeable, dim: brown-olive, red-brown. The surface is dry, leathery, velvety. The flesh of the cap is thin, firm, of the same indeterminate color as the cap, although it is lighter in color. Smell and taste are not pronounced.


Quite frequent, adherent, with a characteristic blood-red color (which, however, smoothes out with age, as the spores mature).

Spore powder:

Rusty brown.

Red-plate leg:

4-8 cm high, lighter than the cap, especially in the lower part, often curved, hollow, covered with not very noticeable remnants of a spider web. The surface is velvety and dry.


The blood-reddish webcap is found throughout the autumn (often from mid-August to the end of September) in coniferous and mixed forests, forming mycorrhiza, most likely with a pine (according to other sources, with a spruce).

Similar species:

There are more than enough similar cobwebs belonging to the subgenus Dermocybe ("skinheads"); the close spider web is blood-red (Cortinarius sanguineus), it is distinguished by a red cap, like young plates.


It is not really known whether the mushroom is poisonous or simply inedible - apparently, there are no people willing to check it.


The blood-reddish webcap immediately attracts attention with its Russian name. Cortinarius semisanguineus can be translated in different ways, but perhaps the most awkward translation has become generally accepted. However, words are words, and a cobweb is a cobweb. This species differs slightly from the beautiful, bright and rare blood-red spider web; it is precisely this beauty and brightness that is different. But under the unattractive gray-brown sign lurks all the same rage and pride as in the red, not reddish, fellow. And from the blood-reddish cobwebs, dye for wool is obtained. If you can imagine sheep breeders wandering through the woods looking for special cobwebs for paint, imagine it yourself. It's hard for me.