Observation 30681: Laccaria laccata (Scop.) Cooke
When: 2009-12-18
No herbarium specimen

Notes: Growing under pines and Eucalyptus

[admin – Sat Aug 14 02:07:22 +0000 2010]: Changed location name from ‘Vollmer Peak, Orinda, Contra Costa Co., CA, USA’ to ‘Vollmer Peak, Contra Costa Co., California, USA

Images

71167
Spores at 1000x in methylene blue and 3% KOH
70875
70876
70877
70878
71168
Spores at 1000x in methylene blue and 3% KOH

Proposed Names

56% (1)
Eyes3
Recognized by sight: Globose spiny spores, ~8-9 um in size.

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

Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Thanks for the source…
By: Douglas Smith (douglas)
2009-12-22 09:56:07 PST (-0800)

Actually Laccaria fraterna was a new one on me. If you want more on Laccaria there is this site:

http://www.fieldmuseum.org/...

Which I think is a site based on the last Laccaria study in North America.

But it seems that, other than the 2-spored or 4-spored basidia, the important character of L. fraterna is the sub-globse to elliptical spores. Although two of your spores shown here are almost sub-globse (but not really), the others are all globose, and I would say these are for the most part globose spores. Which should put this in L. laccata range.

But good to see someone looking more at Laccaria, I always wanted to do that, but never got around to it. They have pretty cool looking spores…

I used mykoweb and Mushroomhobby.com to get the name
By: Richard Sullivan (enchplant)
2009-12-22 09:18:17 PST (-0800)

Both these sites mention this species and the match looks pretty good. Habitat seems like a good match. Spore shape and size look in the range. I think this was called laccata in the past. I need to check if it is 2 -spored or not to be sure.

http://www.mykoweb.com/CAF/species/Laccaria_fraterna.html

http://mushroomhobby.com/...

Can you go into detail here?
By: Douglas Smith (douglas)
2009-12-22 08:05:21 PST (-0800)

Can you go into more detail here on how you got to this name? Since I think this is the first time I’ve heard of this name for the area there… What caused you ignore other names?

Created: 2009-12-20 19:07:02 PST (-0800)
Last modified: 2010-08-14 03:38:01 PDT (-0700)
Viewed: 60 times, last viewed: 2016-03-22 20:23:07 PDT (-0700)
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