Observation 191165: Cyathus helenae H.J. Brodie

When: 2014-11-02

Collection location: Strong Creek, Kaniksu National Forest, Bonner Co., Idaho, USA [Click for map]

48.255° -116.285° 800m

Who: Jason Hollinger (jason)

No specimen available

open medium-aged Thuja-Pseudotsuga-Betula-Acer forest on gentle north-facing bench a few hundred feet above creek; along first quarter mile of Strong Creek Trail



Proposed Names

29% (1)
Recognized by sight
56% (1)
Used references: Arora, Mushrooms Demystified. I believe these are older specimens. The 2nd photo appears to show the dark charcoal weathered tufted hairs of Cyathus h. The interior cup is rather light for this species, but may have been caused by heavy rainfall.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Based on MO obs.
By: Daniel B. Wheeler (Tuberale)
2015-07-21 11:40:16 CDT (-0400)

most people haven’t. Jason. I’m developing a sense that C. helenae is often charcoal-gray or charcoal-purple in color; with thick-walled nests and tufted hairs on the exterior, which can become waterlogged and clumped together in age and very wet weather. Some specimens have a white or at least a lighter edged rim to the nest as well.

Neat, thanks!
By: Jason Hollinger (jason)
2015-07-21 11:12:21 CDT (-0400)

I’d never heard of this species before.

I just now getting a sense of
By: Daniel B. Wheeler (Tuberale)
2015-07-21 11:10:44 CDT (-0400)

C. helenae, and I mighty be wrong, Jason. According to Arora, helenae is found on arid or alpine habitats, has a thicker-walled nest with tufted hairs on the exterior (see other obs. on MO). Tufted hairs are more obvious on younger material as are the thicker walls. Not all obs. on MO include the exterior bases of the “nest” and can therefore be identified. There is often a whitish-cup rim on some specimens which is not noted in the description. Perhaps a remnant of the egg stage?

Created: 2014-12-01 20:27:32 CST (-0500)
Last modified: 2015-07-21 11:04:34 CDT (-0400)
Viewed: 30 times, last viewed: 2017-12-31 10:55:10 CST (-0500)
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