Observation 20846: Hebeloma crustuliniforme (Bull.) Quél.
When: 2009-05-06
Herbarium specimen reported

Notes: Today I noticed a nice group of exotic fungi growing under some near by Silver Birch trees these were Amanita muscaria, Paxillus involutus, Leccinum scabrum. To my surprise there was one I did not recognise nor have seen under these trees before. Its likely this is another exotic. Spores brown 12 × 6.5µm amygdaliform with acute apex, cystidia present often in groups, sphaeropedunculate shaped.

[admin – Sat Aug 14 02:04:57 +0000 2010]: Changed location name from ‘Private property, Aranui Rd, Mt Wellington, Auckland, New Zealand’ to ‘Private property, Aranui Rd., Mount Wellington, Auckland, New Zealand’

Proposed Names

77% (2)
Recognized by sight: Certainly a Hebeloma, but that is as far as I can get
Based on microscopic features
82% (1)
Eye3 Eyes3
Used references: Unpublished keys
Based on microscopic features
Based on chemical features

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Spotted gills
By: Clive Shirley (myxo)
2009-05-08 02:53:17 CDT (-0400)

Yes there were brown spots on the gills seem to becoming from brown pigment in the basida. It also had a different smell although I am not sure if it was the radish smell it should have been but then I have never smelled a radish before.
Thanks for your help.

Spotted gills?
By: Irene Andersson (irenea)
2009-05-07 10:49:03 CDT (-0400)

To be crustuliniforme, that’s essential, and that’s where you can sort out most of the other Hebeloma species.

The use of Melzer’s to make the right turn in a Hebeloma key feels like a lottery (almost indextrinoid, weakly, distinctly or strongly dextrinoid..)

Hebeloma sp.
By: Clive Shirley (myxo)
2009-05-07 03:40:14 CDT (-0400)

Thanks Irene,
looking into the species reported as been here, it looks to be Hebeloma crustuliniforme. I just discovered I have unpublished trial keys for this group and these also key out to the same species. Although that might be just dumb luck as the keys I have require the use of melzer’s and mine is so old and of doubtful quality.

I am not very familiar with this genus we have very few native species so are now getting a better feel for this group.

Created: 2009-05-06 03:58:11 CDT (-0400)
Last modified: 2011-04-01 14:18:51 CDT (-0400)
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