Observation 222538: Spongipellis unicolor (Schwein) Murrill

When: 2015-11-10

Collection location: Tallassee Highlands, Clarke Co., Georgia, USA [Click for map]

Who: Bill Sheehan (B_Sheehan)

No specimen available

On Quercus nigra.
Tough flesh but spongy – I could squeeze lots of water from it.

Fungus on same tree for past three years, new growths in same spot on same tree:
2015-11-10 MO 222538
2016-08-06 MO246539
2017-12-30 MO 306943
Spore print white; Spores ellipsoid-roundish, imamyloid; 5.7-5.9×3.8-4.8


Bottom view
Arrow points to polypore.
Top surface.

Proposed Names

28% (1)
Recognized by sight
61% (4)
Eye3 Eyes3
Used references: Tom Volk; MushroomObserver; MushroomExpert

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Now. that’s what I call dedication to an accurate identification.
By: Judi T. (AvidAmateur)
2015-11-12 09:32:03 EST (-0500)

I’m impressed!

I took a step ladder to the field…
By: Bill Sheehan (B_Sheehan)
2015-11-11 22:41:29 EST (-0500)

and it was still a reach.

Great follow-up, Bill! So hard to tell when something is so high up in a tree.
By: Judi T. (AvidAmateur)
2015-11-11 22:11:00 EST (-0500)

I found something 10-12 feet off the ground the other day and could only get a picture by using my camera’s somewhat limited zoom. No way for me to get up in a tree to see the top side. I’m still keeping an eye on it as it grows, however. Glad you could separate the look-a-likes and get a definitive ID.

Fits Spongipellis unicolor
By: Bill Sheehan (B_Sheehan)
2015-11-11 21:29:08 EST (-0500)

per MushroomExpert and MuchroomObserver photos.

Does NOT fit description of Hapalopilus croceus at http://www.messiah.edu/.
1- The cap and pore surfaces do NOT turn reddish-purple with the application of KOH. No reaction: I went back and tested today.
2- Pores are large 1-2 mm, NOT 2-3 per mm.
3- Tubes 3 cm long.
4- Upper surface white, not bright orange at first
5- Pore surface not a bright reddish-orange as photos.
Both S. unicolor and H. croceus are in the family Hapalopilaceae.

Nice find, Bill! These are fairly uncommon but
By: Judi T. (AvidAmateur)
2015-11-11 12:41:03 EST (-0500)

hard to miss when you come upon one. KOH will give you some beautiful reactions (slightly different reddish purples and violets) on pores, tubes, context, and non-fertile surface. Pictures on my ob. # 216176.

Created: 2015-11-10 23:14:59 EST (-0500)
Last modified: 2018-01-19 15:23:05 EST (-0500)
Viewed: 97 times, last viewed: 2018-04-09 23:47:59 EDT (-0400)
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