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Cortinarius sp. Genus
Angles captured. Ten field frames including one of the log the mushroom grew on, plus six of the spore print.
Cap 3–4 cm, dull violet to lilac-brown, drying paler. Gills violet becoming rust-brown. Stipe pale violet, slender. Spore print rust-brown.
On and beside a decaying log — the substrate frame is kept deliberately.
A rust-brown spore print with violet gills that brown with age is the Cortinarius signature, and it is what raises this above the violet agarics recorded on earlier walks, which were left as Cortinarius or Laccaria precisely because no print was available. The print settles the genus.
Species-level determination needs microscopy; the genus is large and largely inseparable in the field.
Spore print taken (card 10), rust-brown. This is the first violet mushroom in the guide with a spore print behind it. Thirteen earlier entries sit at Cortinarius or Laccaria for want of exactly this — worth comparing them against this one directly.
Found at Coldbrook Rd area, Hubbardston, MA on Friday, 14 August 2026 at 11:14. See the full walk for that day's weather and everything else recorded.
Violet cortCortinarius sp. · Jul 31Moderate–high
Violet agarics on a red eroded bankCortinarius or Laccaria · Aug 6Moderate
Violet agaric in pine litterCortinarius or Laccaria · Aug 6Moderate
Violet agaric, collected and examinedCortinarius or Laccaria · Aug 6Moderate
Violet agarics scattered on a hillsideCortinarius or Laccaria · Aug 6Moderate
Violet agaric beside a mossy logCortinarius or Laccaria · Aug 6Moderate
Violet agarics along a fallen logCortinarius or Laccaria · Aug 6Moderate
Violet agarics on a mossy decaying logCortinarius or Laccaria · Aug 8Moderate