Observation 212099: Kretzschmaria deusta (Hoffm.) P.M.D. Martin
When: 2015-08-05
No herbarium specimen

Notes:
Habitat: mixed deciduous-conifer forest in Coast Range above on log fallen across now-dry portion of stream bed
Substrate: wood, probably deciduous

Proposed Names

13% (3)
Eye3
Recognized by sight
20% (3)
Eyes3
Recognized by sight: looks more like bubbling burnt crust than individual globes

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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If you broke it open
By: Matt Welter (mattfungus)
2015-08-07 20:50:59 PDT (-0700)

and took a picture of it that might give us more of a clue. Kretz would have more of a thinner crust like layer, whereas Dald. may have a harder core and concentric in rings (like tree rings).

Also if look up both species on this site for comparison or here.

https://www.google.com/...

and here

https://www.google.com/...

Kretz. duesta sometimes has a lighter gray green to white green lichen-like younger form near the blackened older forms.

Also the surface if you took had a better close up picture of it. Kretz has a more sandpapery or fine pimply appearance. Daldinia tends to be smoother with more holes like a blackened cookie or marshmallow that’s had bits fallen off of it.

In my region it has been my experience that Kretz tends to be on more rotten wood where the bark is falling off especially larger logs and stumps. Dald. is on medium sized dead or dying limbs that still have bark on them, and I most often see them on alder, though not always.

Thanks for Kretzschmaria
By: Joe Cohen (Joseph D. Cohen)
2015-08-07 18:22:36 PDT (-0700)

mattfungus:
Thanks for suggesting this name. And extra thanks for the explanation.
-Joe

Created: 2015-08-06 17:59:42 PDT (-0700)
Last modified: 2015-08-07 19:03:57 PDT (-0700)
Viewed: 36 times, last viewed: 2016-10-23 14:33:48 PDT (-0700)
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