Hydnum rufescens

Morphological Features:

Pileus of small stature and somewhat non-fleshy appearance; the diameter of the most developed specimens barely exceeds 5 cm at best. It is convex in early stages and becomes flattened upon full development, with the central zone either umbilicate or raised depending on the different forms or varieties. The surface is orange-ochre in color, smooth, and not separable from the flesh, although it may exhibit different shades depending on its condition; orange hues are always present. The margin is regular and tends to become undulate in older specimens.

Spines composed of fragile and brittle structures that detach easily with the slightest touch. These spines are not typically decurrent onto the stipe, although this is a somewhat variable character; in older specimens with an undulate pileus, they may become decurrent. They are whitish when young, turning salmon-colored or concolorous with the pileus at maturity.

Stipe generally slender, elongated, or proportionate to the pileus. Its color ranges from an initial whitish hue to light orange-ochraceous or pinkish tones, staining slightly upon handling. It is solid and brittle in consistency.

Flesh not particularly thick, whitish to cream-colored in cross-section, tending to stain light orange when cut; brittle. The odor is mild and faintly perceptible. The taste is initially sweet but may become slightly bitter after prolonged chewing.

Habitat:

This is a fairly frequent species in many areas of the Iberian Peninsula. It can fruit in both broadleaf forests and under various conifers; we frequently observe it in beechwoods, where it fruits during autumn and may persist into late winter. It is a species that typically fruits in groups, often in fairy rings or lines.

Observations:

This species is edible, although of lower quality than Hydnum repandum, a more fleshy species that typically lacks orange tones on the pileus (except for Hydnum repandum f. amarum which does exhibit orange hues). Current molecular studies have revealed that the species presented here is not a single taxon but rather represents a complex of closely related species initially considered mere forms or varieties of this entity. Within this research framework, taxa such as Hydnum umbilicatum, Hydnum elisosporum, Hydnum ovoidesporum, and Hydnum vesterholtii have been identified. However, this remains under investigation, and it cannot be ruled out that they may ultimately not represent as many distinct species.