When: 2008-12-02

Collection location: Grizzly Peak Blvd., Berkeley, Alameda Co., California, USA [Click for map]

Who: Richard Sullivan (enchplant)

No specimen available

Growing in a group of a hundred or so on wood chips. Gills were brown. 4-8 cm. tall.
I see these a lot and would love to know what they are!


This is the spore print. Looks black to me!

Proposed Names

-12% (2)
Recognized by sight: white stems, Black spore print, no veil, no veil remnants at cap edges, striate cap.
51% (3)
Recognized by sight: Common species described from CA, might need to be moved into Parasola like P. conopilus was.
Used references: obs 129851, obs 155455 & obs 64651.
46% (2)
Recognized by sight: we agree on the genus; more work needed for specific.
28% (1)
Recognized by sight: DNA work needed for genus.

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

= Observer’s choice
= Current consensus


Add Comment
Educated guess
By: Byrain
2014-03-05 15:05:38 PST (-0800)

I consider “Promising” to be a conservative vote in this case and not a mere guess, but yea, you are right, micro would be cool! I think many Psathyrellaceae will be able to be given accurate names in the field once a lot more get photographed, collected, and scoped. Maybe not the species around Psathyrella gracilis, that is just a black hole…

I am pretty sure that Richard has a scope…
By: Debbie Viess (amanitarita)
2014-03-05 12:29:53 PST (-0800)

if so, we could stop guessing and god willing actually know what this is.

I appreciate that you recognize it as a distinct possibility for atrospora on the macro alone, Byrain.

It would still be nice to confirm.

P. atrospora
By: Byrain
2014-03-05 12:18:52 PST (-0800)

That is why I only voted promising, its a pretty perfect macro match, also location & habitat. More revealing would be the large spores with an oblique germ pore, very few hard to find or no pleurocystidia & the thick walled reddish setae on the cap which can be very long. Macroscopically, the glabrous white to yellowish stem, cespitose habit, striate reddish cap, lack of any veil (Unless you find them as the smallest of pins and then it will be yellowish, see img 314191 & img 391129) and jet black print all match. Its a common species that Smith described from a single collection from southern CA and often fruits in large numbers, its relationship with the European species Parasola conopilus & Psathyrella circellatipes which were both recorded in North America by Smith (Not in CA though) still needs to be clarified. Zaca has some good observations of P. conopilus, see obs 81014, obs 82375, obs 82373 & obs 82374.

Edit: Psathyrella atrospora probably belongs in the same genus as Parasola conopilus, but the name Parasola atrospora does not exist yet…

By: Rocky Houghtby
2014-03-05 12:06:34 PST (-0800)

You sure do Debbie

yup, Psath.
By: Debbie Viess (amanitarita)
2014-03-05 11:51:30 PST (-0800)

but don’t you need the micro for a specific ID???!

Yup, there you go
By: Douglas Smith (douglas)
2008-12-03 08:56:19 PST (-0800)

Yup, thats a Psathyrella for ya… they almost looked like the local Conocybe tenera, but that would have a brown to light brown spore print. Yup, yet another small Psathyrella.

Spore print color:
By: Richard Sullivan (enchplant)
2008-12-03 08:01:28 PST (-0800)

Yup. It is black. see photo attached

Spore color?
By: Douglas Smith (douglas)
2008-12-03 07:22:56 PST (-0800)

Was the spore color really black here?