Kab laug sab web (Cortinarius urbicus) yees duab thiab piav qhia


Nroog cobweb (Cortinarius urbicus)

  • Kev faib tawm: Basidiomycota (Basidiomycetes)
  • Subdivision: Agaricomycotina (Agaricomycetes)
  • Chav Kawm: Agaricomycetes (Agaricomycetes)
  • Qib: Agaricomycetidae (Agaricomycetes)
  • Kev txiav txim: Agaricales (Agaric lossis Lamellar)
  • Tsev neeg: Cortinariaceae (Spiderwebs)
  • Hom: Cortinarius (Spiderweb)
  • hom: Cortinarius urbicus (City webweed)
  • Urban agaric Fries (1821)
  • Suburban agaricus Sprengel (1827)
  • Agaricus arachnostreptus Letellier (1829)
  • Urban Gomphos (Fries) Kuntze (1891)
  • Urban telephone (Frieze) Ricken (1912)
  • Hydrocybe urbica (Fries) MM Moser (1953)
  • Urban phlegm (Fries) MM Moser (1955)

Kab laug sab web (Cortinarius urbicus) yees duab thiab piav qhia

Tam sim no lub npe - Urban curtain (Fries) Fries (1838) [1836–38], Epicrisis systematis mycologici, p. 293

Sometimes two forms of the urban cobweb are conditionally distinguished, which differ in external signs and habitat.

According to the intrageneric classification, the described species Cortinarius urbicus is included in:

  • Cov Npe: Telamonia
  • Seem: Huv

Taub hau 3 to 8 cm in diameter, hemispherical, convex, quickly becomes convex procumbent and almost flat, very fleshy in the center, with or without a broad central tubercle, with a mica surface when young, with a tucked edge, with silvery fibers, slightly hygrophanous , often with dark watery spots or streaks; silver gray, light brown or brown, fading with age, grayish beige when dry.

Gossamer Blanket white, not very dense, often leaving a thin shell on the lower part of the stem at the beginning of the growth of the fungus, subsequently remaining in the form of an annular zone.

Kab laug sab web (Cortinarius urbicus) yees duab thiab piav qhia

Cov ntaub ntawv usually not very dense, attached to the stem, pale grayish, ocher-beige, yellowish, brownish, then rusty brown, with a lighter, whitish edge; may be grey-violet when young.

ceg 3–8 cm high, 0,5–1,5 (2) cm thick, cylindrical or club-shaped (slightly widening downwards), sometimes tuberous at the base, often slightly curved, silky, slightly striated, covered with vanishing with time silvery fibers, whitish, pale grayish, brownish, yellowish-brown with age, sometimes slightly purple above under the cap.

Kab laug sab web (Cortinarius urbicus) yees duab thiab piav qhia

Pulp thick closer to the center, thinning towards the edge of the cap, whitish, pale buff, gray-brown, sometimes purple at the top of the stem.

tsis hnov ​​tsw inexpressive, sweetish, fruity or radish, rare; often there is a “dual” smell in the fruiting body: on the plates – a weak fruit, and in the pulp and at the base of the leg – radish or sparse.

saj soft, sweet.

Controversy elliptical, 7–8,5 x 4,5–5,5 µm, moderately warty, with fine ornamentation.

Kab laug sab web (Cortinarius urbicus) yees duab thiab piav qhia

spore hmoov: rusty xim av.

Exicat (dried specimen): grayish cap, brown to dark brown blades, greyish-white stem.

Grows in moist forests, swampy areas, in grass, under deciduous trees, especially under willow, birch, hazel, linden, poplar, alder, often in groups or clusters; as well as outside the forest – on wastelands in urban settings.

It bears fruit quite late in the season, in August – October.


The following can be mentioned as similar species.

Cortinarius cohabitans – grows only under willows; many authors consider it as a synonym for the dim cobweb (Cortinarius saturninus).

Kab laug sab web (Cortinarius urbicus) yees duab thiab piav qhia

Dull cobweb ( Cortinarius saturninus )

Often found together with the urban cobweb, it can also grow in groups in urban environments. It is distinguished by the predominance of yellowish-reddish, brown and sometimes purple tones in the color of the fruiting bodies, a characteristic rim of the remains of the bedspread along the edge of the cap and a felt coating at the base of the stem.

Yees duab: Andrey.

Sau ntawv cia Ncua