Collected at PNW Key Council spring foray, 2017
Single to gregarious in soil under shrubs – rose, dogwood etc. near Quercus, Pseudotsuga, + unidentified smaller hardwood
Cap – < 3.7 cm diam., sub-acute conical; hygrophanous; reddish-ochre at first, drying to ochraceous-buff; smooth, lubricous,
Gills – deeply notched but attached; close; pale orange-ochre, sub-serrate edges;
Stipe – < 10.0 cm tall x 0.8 cm wide; dry; striate to grooved; no annulus; deeply rooting.
Micro – spores ~ 5-7 × 3-3.5, oblong, white, smooth, inamyloid

Species Lists


Proposed Names

45% (2)
Recognized by sight: Web research after name was suggested as possiblility.
Based on microscopic features

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Add Comment
By: Patrick R. Leacock (MycoGuide)
2018-05-08 01:48:00 EDT (-0400)

The spores are supposed to be amyloid. A weak reaction may be shown in your photo.

those caps do appear to be brick red
By: Debbie Viess (amanitarita)
2017-05-31 10:35:30 EDT (-0400)

but seem to fade over time, like many colored fungi.

not all examples are “picture perfect,” eh?

we’ll see how well our macro/micro ID matches up to the DNA.

Thanks for the references…
By: Drew Parker (mycotrope)
2017-05-31 02:01:38 EDT (-0400)

We plan to have this sequenced, so something to look forward to.

Brick red
By: Darvin DeShazer (darv)
2017-05-31 01:11:28 EDT (-0400)

Cap color is described as brick red for Caulorhiza hygrophoroides

Steve Nelsen. THE FALSE WITCHʼS CAP AN UNUSUAL FUNGUS FROM NORTH AMERICA. Field Mycology Volume 6(4), October 2005

Also Mycophile 46(4): 19

great find!
By: Debbie Viess (amanitarita)
2017-05-30 21:20:44 EDT (-0400)

most of the known obsies of this sp. have been from Quebec, in disturbed forest.
One prior known specimen came from OR.

From the IUCN Global Redlist webpage,

“Caulorhiza hygrophoroides is wood-decaying fungus easily identified because of its deep brick-red cap and its longitudinally striate, twisted, solid and tough stem that is strongly rooting”

Created: 2017-05-30 01:42:51 EDT (-0400)
Last modified: 2019-04-02 15:17:46 EDT (-0400)
Viewed: 261 times, last viewed: 2019-12-07 18:46:03 EST (-0500)
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