Observation 79699: Hydnaceae sensu lato

In mixed Douglas Fir (Pseudotsuga menziesii var. menziesii), Redwood (Sequoia sempervirens), Tanoak (Notholithocarpus densiflorus) and Hazelnut (Corylus Cornuta var. Californica).

Darkens in KOH.

Basidia with four sterigmata; spores cylindrical to oblong and slightly allantoid in side view, smooth, inamyloid, roughly 2-3×5-6μm.

Species Lists


100x Melzer’s – tooth
400x Melzer’s – tooth edge
1000x Melzer’s – basidia
1000x Melzer’s – spores

Proposed Names

42% (2)
Recognized by sight
29% (1)
Recognized by sight
Used references: Tao
58% (1)
Eye3 Eyes3
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Thomas Laxton (Tao)
2016-11-03 19:14:43 PDT (-0700)

I was just playing the devils advocate. I always like to go back and see if any one had found spices I have found and did not recognize it. Too bad is in a vault over there.

i expect
By: Danny Newman (myxomop)
2016-11-03 18:59:02 PDT (-0700)

that for this to have been Hydnochaete, or anything else in the Hymenochaetaceae for that matter, some pretty obvious setae would have had to have been present, which neither do these micrographs show nor did I indicate in the notes all those years ago…

side note
By: Danny Newman (myxomop)
2016-11-03 18:41:41 PDT (-0700)
if one exists
By: Danny Newman (myxomop)
2016-11-03 18:33:42 PDT (-0700)

it’s in an unaccessioned area of the SFSU herbarium. i won’t have a chance to check for a long time, and there’s no one who can really look on my behalf and have any decent chance of finding it. :(

By: Thomas Laxton (Tao)
2016-11-03 18:24:53 PDT (-0700)

Do you still have the specimen? Did you see any encrusted cystidia when you did micro? The spores look like close to Mycoacia nothofagi, The basidia with four sterigmata fit the description and this specimen looks similar to one Gerhard put up here in 2011.

Created: 2011-10-17 01:09:55 PDT (-0700)
Last modified: 2016-11-03 18:41:40 PDT (-0700)
Viewed: 97 times, last viewed: 2017-06-09 22:36:11 PDT (-0700)
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