Tricholoma sciodes

Morphological Features:

Pileus not overly large nor fleshy in habit, its adult size may range between 3 and 7 cm in diameter. Initially conical, it gradually expands to adopt a convex-flattened shape with maturity, rarely becoming completely plane, while retaining a distinct pointed umbo centrally. The surface exhibits a fairly homogeneous gray color due to its satiny texture, with shades varying according to moisture but remaining consistently gray; it is covered with concolorous fibrils and lacks both hairs and scales. The margin is regular and opaque, lacking striations.

Lamellae sinuate, often unguiculate, grayish in color, somewhat paler initially, rather crowded, with the margin punctate black even in young specimens.

Stipe elongated relative to the pileus, cylindrical and slender in appearance, whitish, sometimes with a grayish tinge, smooth and solid, not pruinose nor bearing any covering; no color changes are observed upon handling.

Flesh not overly thick but with some firmness, fibrous, white with a grayish tinge especially beneath the cuticle. It has an unpleasant odor ranging from radish-like to earthy; its taste is likewise unpleasant, both bitter and pungent.

Habitat:

There is some controversy regarding this aspect due to confusion with related species; according to our experience, this species is common in our beech forests, where it often grows profusely in favorable years. It is more common in broadleaf forests than Tricholoma virgatum, and less common than the latter in coniferous forests. It typically grows in small clusters from late summer and especially throughout autumn.

Observations:

It is a species with an unpleasant taste, considered somewhat toxic by some authors. It is characterized by its initially conical pileus that later develops a pointed umbo, and by the lamellar margin punctate black even in young specimens. It is very closely related to Tricholoma virgatum, which has a more silky cuticle, a concolorous lamellar margin, and a very bitter taste that becomes highly pungent after prolonged chewing. Among the edible species prone to confusion, Tricholoma terreum should be noted; it is exclusive to coniferous forests and has a pleasant taste. Recently, a highly toxic species has been proliferating in our beech forests that may also resemble the present species: Tricholoma filamentosum, a mushroom with a robust habit that, despite its toxicity, does not have an unpleasant taste.