Note the bright blue basal tomentum! (Remained blue when dried)

Lamellae not dark-marginate.

Growing on exposed redwood roots hanging from the wall of a sinkhole on center campus.

Spores: Inamyloid, 6.8 × 4.0 microns, Q = 1.7
Narrow-ellipsoid to cylindric, to broadly ellipsoid. Size and shape quite variable.

Pileipellis entangled cutis, with some erect elements. Mostly thin elements, but some inflated, not diverticulate, occasionally knobbed. Obscurely and sparsely clamped.

Caulocystidia at stipe apex up to 207 microns long, 9.7 microns thick, long, sinuous, non-diverticulate, not septate or sometimes once basally, no clamps.

Species Lists


Copyright © 2009 Christian F. Schwarz
Copyright © 2009 Christian F. Schwarz
Copyright © 2009 Christian F. Schwarz
Copyright © 2009 Christian F. Schwarz

Proposed Names

32% (4)
Recognized by sight: Tiny, striate, white-spored

Please login to propose your own names and vote on existing names.

= Observer’s choice
= Current consensus


Add Comment
This is Mycena amicta
By: Alan Rockefeller (Alan Rockefeller)
2019-01-24 17:10:24 CST (-0500)

It matches macroscopically with one I verified with DNA sequencing, also from the bay area.

Mycena Sections With Blue
By: Excited delirium [EXD]▼ (Excited delirium [EXD]▼)
2019-01-24 06:40:16 CST (-0500)

Mycena sect. Amictae
Mycena sect. Viscipelles
Mycena sect. Cyanocephalae

there is another name…
By: Christian (Christian Schwarz)
2011-05-03 00:09:53 CDT (-0400)

that is also European that should be considered M. cyanorhiza

Problem is the inamyloid, elongate spores.
By: Christian (Christian Schwarz)
2009-12-07 20:36:20 CST (-0500)

But even so, I hadn’t considered that one. Good suggestion!

By: Michael W (Michael Wallace)
2009-12-07 20:20:10 CST (-0500)
Bright blue basal mycelium!
By: Christian (Christian Schwarz)
2009-12-07 18:54:34 CST (-0500)