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Conocybe tenera

brown dunce cap

Conocybe tenera — 2026-08-26
Scientific identification
Conocybe tenera (Schaeff.) Kühner
Family
Bolbitiaceae
Class
Agaricomycetes
Genus
Conocybe

Names across languages

  • English: brown dunce cap
  • German: Roststieliges Samthäubchen
  • Finnish: Ruostekuupikka
  • Estonian: Pruun sametkübarik
  • Russian: Коноцибе нежная

The scientific profile

From the latest record: 2026-08-26.

Hymenium

Gills crowded; pale ochre when young, becoming cinnamon to rust-brown with maturity; edges distinctly paler

Cap

Conical when young, later bell-shaped; smooth, dry, hygrophanous; ochre-brown, cinnamon to rust-brown, fading yellowish-beige when dry; margin faintly striate

Hymenium Attachment

Adnexed to narrowly adnate

Stipe

Slender, straight, whitish to pale ochre-brown with rusty tones; finely pruinose or granular, hollow and very fragile; base sometimes slightly swollen; ring absent

Spore print

Spore print rust-brown to cinnamon-brown

Description

Saprobic in lawns, meadows, pastures, parks, gardens; disturbed nutrient-rich soil; occasionally on leaf litter or woodchips; solitary or scattered; spring to autumn

Edibility

Not recommended; insubstantial, difficult to identify

Fruit body

Fruit body small; stipe ~3–9 cm long and ~0.1–0.4 cm thick

Dimensions

Cap ∅ ~1–3 cm

Flesh

Cream to pale ochre, very thin and fragile, unchanging when cut

Chemical reactions

No macroscopic reagents reaction

Odour

Faintly mushroomy

Taste

Indistinct

Microscopy

Spores ellipsoid, smooth, thick-walled, ~9–14 × 5–8 µm, with a conspicuous germ pore; basidia 4-spored; cheilocystidia and caulocystidia lecythiform; pleurocystidia absent; pileipellis hymeniform

Overview

Delicate cinnamon-brown grassland conecap with a fragile ringless stipe

1935). Encyclop. Mycol. 7: 68.

Field encounters

26/Aug/2026, 6:06 PM

Kadrioru park, Tallinn, Harju, Eesti

Urban park, mawned grassland, in disturbed soil

59°26'33.9"N 24°47'46.8"E

🌡️ 20°C ☀️ Sunny 💨 Wind 330° NNW->SSE, 9 km/h

Original Instagram post

Source hashtags

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