Clathrus archeri

Morphological Features:

Fruiting body initially egg-shaped, with a soft, gelatinous consistency, measuring approximately 3 cm in height by 4 to 5 cm in width, and slightly flattened at the apex. Upon dehiscence from the top, it reveals a structure composed of several strikingly red arms bearing some darkish spots. These arms transition from an erect posture to drooping towards the ground and spreading apart, resembling crab legs. Typically numbering four or five, they taper to a point.

Peridium dirty white and highly gelatinous, occasionally slightly pinkish; it persists at the base as a volva-like structure following the expansion of the arms.

Stipe rudimentary and whitish, remaining enclosed within the egg upon dehiscence; it appears pinkish at the junction with the arms.

Flesh mucilaginous in consistency and pinkish in color, emitting a characteristic fetid odor; the gleba is olive-green and highly repulsive.

Habitat:

Fruiting occurs during summer and autumn, primarily in deciduous forests, where it is frequently observed in beechwoods and oakwoods. This species has been expanding its distribution significantly in recent years.

Observations:

Its repulsive odor renders it inedible; although some authors report edibility at the egg stage, we strongly advise against consumption. It is reportedly native to other continents, but it is currently colonizing extensive areas previously favorable to the black fungus. In the egg stage, it may resemble Clathrus ruber or Phallus impudicus, necessitating a cross-section for definitive identification.