When: 2009-02-25

Collection location: Auckland, New Zealand [Click for map]

Who: Michael W (Michael Wallace)

No specimen available

Fruiting under Pinus radiata and Leptospermum scoparium.


Copyright © 2009 Michael
Copyright © 2009 Michael
Copyright © 2009 Michael
Copyright © 2009 Michael

Proposed Names

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= Observer’s choice
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Add Comment
Microscopy is not too helpful here
By: Dimitar Bojantchev (dimitar)
2009-03-05 09:06:52 PST (-0800)

This is one case where microscopy will probably not be of much help.
Macrochemical tests either. The best bet is to keep doing what you’re
doing — good photos in all stages of development.

Also, you may want to dry a fruitbody or two in case someone wants to
study these in greater depth.

By: Michael W (Michael Wallace)
2009-03-04 19:14:10 PST (-0800)

Thanks for the feedback Dimitar, there is one old __Pinus radiata on my property growing amongst the native NZ forest, these fruit in abundance around this tree every year around this time, I will make some fresh collections when I get a chance and do some microscopy if it will help!
The taste is slightly bitter and slightly acidic?
Thanks again.

Wow, looks like a Californian — Suillus granulatus (sensu Thiers)…
By: Dimitar Bojantchev (dimitar)
2009-03-04 18:40:28 PST (-0800)

This one looks very much like the Californian interpretation of
S. granulatus. To be frank though I am not entirely sure what
S. granulatus is in California.

I find the European material easy to tell apart.

Here are photos from both (top California, bottom Europe, forgot what
country exactly).


This one has always been on the Top 10 list of species to be checked
by molecular means. I absolutely doubt that the name will survive more
serious scrutiny…

Now, looking through Fuhrer’s Australian Fungi guide, he too shows a
photo of a similar Suillus granulatus. Very likely to be an American

D. www.mushroomhobby.com
By: Michael W (Michael Wallace)
2009-03-04 15:59:59 PST (-0800)

I agree with this name, the taste is slightly bitter and there is no blue staining reaction.
Next time I see this I’ll make some micrographs!
Thanks for the help:)

By: Gerhard Koller (Gerhard)
2009-03-04 14:10:59 PST (-0800)

I would agree with Irene that it is not S.granulatus. I myself have found many American species under Pinus radiata when visiting Australia. So it is possible that this is S.subacerbus. It also looks much like S.collinitus but this species does not blue in the cap context.

Something strange about the shape
By: Irene Andersson (irenea)
2009-03-04 09:51:17 PST (-0800)

I know that S. granulatus varies a lot, but couldn’t it also be Suillus subacerbus?