Mycena hiemalis

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Mycena hiemalis

23 December 2025 Crab Wood, Hampshire. Photograph copyright Leif Goodwin.

Cap

Convex, usually with a small bump at the centre, pale brown, radially lined, paler towards the margin, margin scalloped, to about 10 mm across

Gills

Adnate to decurrent, whitish

Stem

Equal, smooth, translucent, whitish, to about 3 cm high

Flesh

White

Smell

Indistinct

Taste

Indistinct

Season

Autumn to winter

Distribution

Rarely reported

Habitat

Among moss on the bark of living deciduous trees

Spore Print

White

Microscopic Features

Spores ellipsoidal, smooth (6-10) x (5-7) µm2. Gill edge cystidia spindle to bladder shaped. Stem cystidia

Edibility

Inedible

Notes

The 2025 collection was independently identified by Eric Janke and Leif Goodwin. Both noted the absence of gill edge cystidia. A sample will be DNA sequenced.

Mycena hiemalis

23 December 2025 Crab Wood, Hampshire. Photograph copyright Leif Goodwin.

Mycena hiemalis

23 December 2025 Crab Wood, Hampshire. Photograph copyright Leif Goodwin.

Mycena hiemalis

Spores in Congo Red solution viewed with a 100X immersion objective. 23 December 2025 Crab Wood, Hampshire. Photograph copyright Leif Goodwin.

Mycena hiemalis

26 October 2013 Hampshire. Photograph copyright .

Mycena hiemalis

26 October 2013 Hampshire. Photograph copyright Leif Goodwin.

Mycena hiemalis

26 October 2013 Hampshire. Photograph copyright Leif Goodwin.

Mycena hiemalis

Spores in Congo Red solution viewed with a 100X immersion microscope objective. 26 October 2013 Hampshire. Photograph copyright Leif Goodwin.

Mycena hiemalis

Gill edge cystidia viewed with a x40 microscope objective. 26 October 2013 Hampshire. Photograph copyright Leif Goodwin.