Deciduous rowweed (Tricholoma frondosae)

Systematics:
  • Division: Basidiomycota (Basidiomycetes)
  • Subdivision: Agaricomycotina (Agaricomycetes)
  • Class: Agaricomycetes (Agaricomycetes)
  • Subclass: Agaricomycetidae (Agaricomycetes)
  • Order: Agaricales (Agaric or Lamellar)
  • Family: Tricholomataceae (Tricholomovye or Ryadovkovye)
  • Genus: Tricholoma (Tricholoma or Ryadovka)
  • Type: Tricholoma frondosae (Tricholoma frondosae)

:

  • Aspen rowing
  • Tricholoma equestre var. populinum

head 4-11 (15) cm in diameter, conical in youth, bell-shaped, prostrate with a wide tubercle in age, dry, sticky in high humidity, greenish-yellow, olive-yellow, sulfur-yellow. The center is usually densely covered with yellow-brown, reddish-brown, or greenish-brown scales, the number of which decreases towards the periphery, disappearing. The scaling may not be as pronounced in color for mushrooms growing under foliage. The edge of the cap is often curved, in age it can be raised, or even turned up.

Pulp white, perhaps slightly yellowish, the smell and taste are soft, farinaceous, not bright.

Records from average frequency to frequent, notched-grown. The color of the plates is yellow, yellow-greenish, light green. With age, the color of the plates becomes darker.

spore powder white. Spores ellipsoid, hyaline, smooth, 5-6.5 x 3.5-4.5 µm, Q= (1.1)1.2…1.7 (1.9).

Leg 5-10 (up to 14) cm high, 0.7-2 (up to 2.5) cm in diameter, cylindrical, often widened towards the base, smooth or slightly fibrous, pale-yellow, greenish-yellow to sulfur-yellow.

Deciduous rowing grows from August to September, rarely in October, forms mycorrhiza with aspen. According to unconfirmed reports, it can also grow with birches.

According to phylogenetic studies [1], it turned out that the earlier findings of this species belong to two well-separated branches, which probably indicates that two species are hidden behind this name. In this work, they are called “Type I” and “Type II”, differing morphologically in spore size and pale color. Probably, the second type can be separated into a separate species in the future.

  • Row green (Tricholoma equestre, T.auratum, T.flavovirens). Close view. Previously, Ryadovka deciduous was considered its subspecies. It differs, first of all, in confinement to dry pine forests, grows later, is more stocky, and its hat is less scaly.
  • spruce rowing (Tricholoma aestuans). Outwardly, a very similar species, and, given that both are found in spruce-aspen forests at the same time, it is easy to confuse them. The main difference between the species is the bitter / pungent flesh of the spruce, and its attachment to conifers. Its cap is less scaly, slight scaly appears only with age, and also turns brown with age. The flesh may have pink hues.
  • Row Ulvinen (Tricholoma ulvinenii). Morphologically very similar. This species is little described, however, it grows under pines, so it usually does not overlap with the deciduous tree, has paler colors, and an almost white stalk. Also, this species has problems with two different branches identified by phylogenetic studies.
  • Row of Joachim (Tricholoma joachimii). Lives in pine forests. It is distinguished by whitish plates and a pronouncedly scaly leg.
  • Row different (Tricholoma sejunctum). It is distinguished by dark green-olive tones of the cap, white plates, a radially fibrous, non-scaly cap, a white leg with greenish spots.
  • Row olive-colored (Tricholoma olivaceotinctum). Differs in dark, almost black scales, and whitish plates. Lives in similar places.
  • Melanoleuca slightly different (Melanoleuca subsejuncta). Differs in dark green-olive tones of the cap, less significantly present than in Ryadovka, white plates, non-scaly cap, white stem. Previously, this species was also listed in the genus Tricholoma, as Ryadovka is slightly different.
  • Row green-yellowish (Tricholoma viridilutescens). It is distinguished by dark green-olive tones of the cap, white plates, a radially fibrous, non-scaly cap, with dark, almost black fibers.
  • Sulfur-yellow rowing (Tricholoma sulphureum). It is distinguished by a non-scaly cap, a nasty smell, a bitter taste, yellow flesh, darker at the base of the leg.
  • Row toad (Tricholoma bufonium). According to phylogenetic studies, it most likely belongs to the same species as Ryadovka sulfur-yellow. Microscopically it does not differ from it. It differs from Ryadovka deciduous, like R. in a sulfur-yellow, non-scaly cap, nasty smell, bitter taste, yellow flesh, darker at the base of the stem, and pink shades of the cap.
  • Ryadovka Auvergne (Tricholoma arvernense). Its difference lies in the confinement to pine forests, the radial fibrous cap, the almost complete absence of bright green tones in the cap (they are olive), white stem and white plates.
  • Row green-colored (Tricholoma viridifucatum). Differs in a non-scaly, radially fibrous cap, white plates, a more squat mushroom. According to some reports, it is confined to hard tree species – oak, beech.

The deciduous row is considered a conditionally edible mushroom. In my opinion, even very tasty. However, according to some studies, toxic substances that destroy muscle tissue were found in greenfinch similar to it, respectively, and this species, as close to it, may contain them, which has not been proven at the moment.

Leave a Reply