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Violet agarics on a red eroded bank

Cortinarius or Laccaria Genus

Moderate confidence TM0030 6 August 2026 · 10:35 7 frames
IMG_4124#4124IMG_4125#4125IMG_4126#4126IMG_4127#4127IMG_4128#4128IMG_4132#4132IMG_4133#4133

Angles captured. Seven frames working in from a wide view of the bank to close profiles.

Morphology

Cap 3–4 cm, deep lilac-violet, convex to broadly convex, smooth and slightly shiny. Stipe pale lilac, slender, 4–6 cm, fibrillose. At least two fruitbodies scattered a short distance apart.

Habitat & substrate

Bare reddish-brown eroded soil on a steep cut bank, sparse grass and pine litter. Almost no leaf cover — a raw, exposed microsite.

Lookalikes & what rules them out

Two genera stay in play. Laccaria amethystina and L. ochropurpurea have thick, widely spaced, waxy gills; Cortinarius has thinner, closer gills and a rusty spore print. Frames #4233, #4234 and #4243 show gills that are close and thin, with a distinctly pinkish-brown cast suggesting a rusty deposit — which points to Cortinarius.

Notes

The reddish mineral soil here is quite unlike the leaf-litter habitat of the other five populations.

Found at Leominster State Forest, Leominster, MA on Thursday, 6 August 2026 at 10:35. See the full walk for that day's weather and everything else recorded.

Others in this group

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