Observation 80100: Postia ptychogaster (F. Ludw.) Vesterh.
When: 2011-10-20
No herbarium specimen

Notes: This is growing on a downed hemlock and also on some old spruce snags, texture is soft, when cut there was very little smell(some what woody). Appears to have a very short/wide stem. This particular one is about 7-8cm but also saw smaller. almost hair like outer(white area).
Thanks for any help


This is Postia ptychogaster identified by Irene Anderson
Hiking a different trail in the park and found this solitary fungi of the same genus so I photographed it.

Proposed Names

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Recognized by sight

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Postia ptchogaster
By: Russell (katsalano)
2011-11-21 06:07:50 PST (-0800)

Thanks Irene, I followed up with some other observations and it is the same fungi

By: Irene Andersson (irenea)
2011-11-20 09:36:42 PST (-0800)

It should be named Postia ptychogaster.. In my book by Ryvarden & Gilbertson they say “apparently endemic to Eurasia”, but it is listed from Oregon here:

Nothing I’ve encountered before.
By: Daniel B. Wheeler (Tuberale)
2011-10-27 20:07:55 PDT (-0700)

I’m afraid microscopy is going to be necessary to narrow things down.

10/27/2011 Observation
By: Russell (katsalano)
2011-10-27 17:11:59 PDT (-0700)

There are only three of this verity left on the log and no others in the area that I can find. As you can see in the photo this displays the stem better then the other photos.
Thanks for any help

Believe Danny Neuman right.
By: Daniel B. Wheeler (Tuberale)
2011-10-24 11:55:12 PDT (-0700)

Blew up final photo, which does not match Daldinia at all. I’m removing that suggestion.

By: Russell (katsalano)
2011-10-24 07:17:45 PDT (-0700)

Went out and checked on color changes to the fungi, but as of yet they are still maintaining their white color?
Thanks for any help or comments

By: Russell (katsalano)
2011-10-22 06:23:28 PDT (-0700)

I don’t believe this is a Daldinia, but will wait to see how it turns.This does not grow in tight groups but on this particular log there are about five that are spread out of a foot or more. The photo of the two small ones was taken in a different location (not to far away)and they were growing on the ground (moss covered).
Thank you for the help and I will keep checking the progress in the next few days.

all wrong
By: Danny Newman (myxomop)
2011-10-21 17:05:14 PDT (-0700)

for Daldinia.

Yours: Soft, substipitate, with an inner gleba-like mass of light brown spores and a wooly, white outer surface

Daldinia: Woody, sessile, black or purple exterior, black-spored, usually with concentric rings in cross-section

edit: i must have neglected to note the predictive (and confident) tone of Tuberale’s proposal. that last hat was so delicious, i must be itching for seconds. still, never seen a Daldinia start off this way. never heard of it occurring either.

By: Danny Newman (myxomop)
2011-10-20 11:43:47 PDT (-0700)

do you have a cross-section showing the stem and surrounding spore mass? I found an unusual Trappea here in CA that bears a subtle resemblance.

Created: 2011-10-20 10:22:36 PDT (-0700)
Last modified: 2011-11-22 01:33:40 PST (-0800)
Viewed: 190 times, last viewed: 2016-10-25 01:14:43 PDT (-0700)
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