Observation 51279: Dictyocephalos attenuatus (Peck) Long & Plunkett

When: 2010-08-24

Collection location: Pepperwood Preserve, Santa Rosa, California, USA [Click for map]

38.4582° 122.7036°

Who: Debbie Drechsler (debdrex)

No specimen available

Last fall an old valley oak (Quercus lobata) was cut down in this spot. Yesterday, I saw these interesting fungi fruiting where the tree used to be. As far as I can tell the spores are dispersed when the “skin” on top of the pileus splits or bursts, or when it just falls off, revealing the spores. The specimen pictured is 13 cm tall and the pileus is 5.1 cm across. It smells like grocery store mushrooms and produced no staining when handled.

Species Lists



Proposed Names

32% (2)
Recognized by sight
45% (2)
Recognized by sight: The shape is odd and the stem is very white… not comfortable calling it phalloides
52% (2)
Recognized by sight: The first image screams Dictyocephalos.

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
John here,
By: John Steinke (John Steinke)
2017-07-01 08:30:55 EDT (-0400)

C. G. Lloyd’s Mycological Writings, Vol. 1, 1898-1905, has a photo of each of these species. Puff Ball Letter No. 3, Plate 11 has side by side photos.
With no specimens and only these two photos in front of me I would have to agree with Queletia. It just seems impossible that this rare species has turned up again in the U.S.A..

Hey John,
By: Jacob Kalichman (Pulk)
2017-06-29 16:49:30 EDT (-0400)

Do you know of any photos of Dictyocephalos attenuatus?

If you do happen
By: Christian (Christian Schwarz)
2017-06-29 09:36:27 EDT (-0400)

to see them again, please save a couple. They should dry fairly easily.
Really interesting find.

By: Debbie Drechsler (debdrex)
2017-06-27 20:03:46 EDT (-0400)

Christian, I’m sorry to say that I have nothing left of these mushrooms.

By: Christian (Christian Schwarz)
2017-06-27 11:24:14 EDT (-0400)

Hi Debbie, did you save this one or dehydrate it by any chance?
Looking at it again, I don’t think it’s a Battarraea… I would love to have a closer look at it.

Created: 2010-08-24 17:53:39 EDT (-0400)
Last modified: 2017-09-22 19:53:33 EDT (-0400)
Viewed: 188 times, last viewed: 2018-07-22 16:05:02 EDT (-0400)
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