Observation 12301: Fungi Bartl.

When: 2008-10-10

Collection location: Southeast Portland, Multnomah Co., Oregon, USA [Click for map]

Who: Daniel B. Wheeler (Tuberale)

No specimen available

I was hoping I’d find one of these this year. They don’t always appear, even when you know what they look like, and are looking in the right area. This one looked more like a knob off a tree. But broken open… Daldinia grandis. The gleba of Daldinia concentrica is layered. Daldinia grandis, as you can see, isn’t. This is a very young specimen. In age it would become more solid and nearly powdery inside.



Proposed Names

-37% (5)
Recognized by sight
57% (1)
Recognized by sight
9% (3)
Recognized by sight
-33% (2)
Recognized by sight: olivaceous peridium, purple-brown gleba
27% (2)
Recognized by sight

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
floppy disk???
By: Danny Newman (myxomop)
2014-07-15 19:32:39 CDT (-0500)
By: Daniel B. Wheeler (Tuberale)
2014-07-15 19:13:04 CDT (-0500)

Annulohypoxylon thouarsianum is not possible in Portland, Oregon. We have no Canyon Live oak this far north, nor Tan oak (both of which are found in extreme southwestern Oregon).

This does not have radiating lines through the gleba, either.

I did not take a collection of it. The photo was the only one of several which I took, then found the floppy disk with additional photos was corrupted.

By: Roo Vandegrift (Werdnus)
2014-07-15 15:09:38 CDT (-0500)

An odd one. What are the little white thread-like structures?

From the picture, it COULD be a Daldinia, but it could be any number of other things too. Daniel seems pretty sure it’s a Daldinia, and while I agree that he’s got some of the descriptive terms mixed up (gleba, etc.), the incorrect use of some specialized vocabulary doesn’t necessarily mean he doesn’t know what he’s talking about. What bothers me in the bit about Daldinia grandis not having a layered interior: that’s plainly wrong — all Daldinia have concentric zonation, even when really young.

Daniel: Given that you’re using Aurora to get ID, I’d bet you have (and probably have had in the past) Annulohypoxylon thouarsianum, which is really easy to confuse with a Daldinia, and keys as D. grandis in Arora’s book. That photo’s just showing us the broken open underside, right? Can you take another showing a close up of the surface? If you have a hand lens or some other magnifying glass, look closely at the surface and see if you see little rings or discs around each of the ostioles. That’ll be what gives it away. See, for example: 158733 or 160262.

my mistake
By: Danny Newman (myxomop)
2014-07-15 05:40:16 CDT (-0500)

Daldinia are neither known to become “powdery” nor “nearly powdery” in age, unless, of course, my brittle/crumbly carbonaceous is your (nearly) powdery, but I’m taking your use of the word to mean puffball powdery.

I have seen young and old Daldinia. This is still not Daldinia to my eye. More/higher resolution images would greatly aid the discussion.


You have misquoted me, Danny.
By: Daniel B. Wheeler (Tuberale)
2014-07-15 00:30:58 CDT (-0500)

I said “In age it would become more solid and nearly powdery inside.” This was growing on wood.

Perhaps peridium is incorrect. This does have an exterior. It matched the exterior shown in David Arora’s Daldinia grandis (Mushrooms Demystified, p 887, top specimen which has been sectioned). The exterior is a different color than the interior. Arora notes “Exterior black (or dark brown when young)…” It does not have the layers that Daldinia typically does. I think that is due to the youth of the specimen. Arora notes the “Exterior black… roughened or pimpled by the perithecia, often cracked in age.” I’m not certain David has seen the fungus within the first week of erupting from a bedlog.

It was not powdery. “In AGE it would become more solid NEARLY powdery inside.”

I was successful in growing Daldinia several years ago. While attempting to grow Lentinula edodes on Red alder logs, some of the 10,000 logs I innoculated fruited Daldinia instead. If the only thing you’ve seen of Daldinia are mature specimens, you haven’t seen the material less than a week old. Daldinia when very young smells and have a texture that tempts the pallate. I was unsure of my identification in 1992 when I grew it. Not now.

your notes and comment
By: Danny Newman (myxomop)
2014-07-14 19:55:05 CDT (-0500)

contain erroneous information. Daldinia is an ascomycete and does not produce gleba, but rather asci within perithecia. the context of Daldinia spp. are more or less all concentric to some degree, unlike here, and none possess peridia (this is a basidiomycete character). fruiting bodies will generally become brittle with age, never “powdery” or “more solid.” no perithecia are present here, nor is there any concentric zonation. this is not a Daldinia.

I don’t believe Fuligo
By: Daniel B. Wheeler (Tuberale)
2014-07-14 19:51:12 CDT (-0500)

has a peridium, as this fungus does. Nor does it grow out of wood. As I recall, the texture of this fungus was cork-like or harder.

Found as a knob-shaped growth
By: Daniel B. Wheeler (Tuberale)
2014-07-14 19:48:33 CDT (-0500)

off of wood.

Looks like a slimemold
By: Irene Andersson (irenea)
2010-04-06 15:14:13 CDT (-0500)

like a kind of Fuligo or something..

not grandis…
By: Debbie Viess (amanitarita)
2010-04-06 11:23:45 CDT (-0500)

which shows distinct layers in the context.

not sure what exactly you do have here, since the exterior also doesn’t show the pimpled texture of Annulohypoxylon thouarsiana, either.

here’s a link to the definitive D. grandis species description page:

Created: 2008-10-10 22:25:47 CDT (-0500)
Last modified: 2015-11-22 23:40:44 CST (-0600)
Viewed: 220 times, last viewed: 2018-11-24 11:59:28 CST (-0600)
Show Log