Observation 90995: Lactarius rubidus (Hesler & A.H. Sm.) Methven

When: 2012-03-26

Collection location: Mount Tamalpais State Park, Marin Co., California, USA [Click for map]

Who: Matt Shapiro (trepverter)

No specimen available

growing under redwoods

Proposed Names

85% (3)
Eye3 Eyes3
Recognized by sight: “nubbly”, dry cap with no sheen or adhering debris, skim-milk colored latex, sweet odor

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
mycorrhizal relationships
By: zack mikalonis (zackm)
2012-03-27 14:18:14 CST (-0500)

So do any mushroom producing fungi form mycorrhizal relationships with redwoods? Whats the deal? Do they just have mycorrhizal fungi that don’t form “mushroom” fruit bodies, or root endophytes? Anyone have a link to a good article?

redwood vs douglas-fir
By: Matt Shapiro (trepverter)
2012-03-27 09:51:41 CST (-0500)

I was surprised to find these in this area-around the Alice Eastwood picnic tables. There were maybe 2 or 3 douglas-firs within a 100 yard radius, none very close.

It definitely looks to be growing UNDER redwoods
By: Christian (Christian Schwarz)
2012-03-27 09:42:34 CST (-0500)

But it’s almost certainly not growing WITH redwoods, in a mycorrhizal relationship.
There’s a difference…

It probably is growing under Redwood
By: Noah Siegel (Noah)
2012-03-27 09:42:26 CST (-0500)

but it’s not growing with redwood…

redwood vs douglas-fir
By: Matt Shapiro (trepverter)
2012-03-27 09:40:09 CST (-0500)

A good way to differentiate between the two without seeing the bark is that douglas-fir needles are shed individually and redwood needles are shed in long strands like the ones you see here. Redwood needles are also smaller.

You can see a couple of redwood cones in the second photo.

Its not growing under redwoods
By: Alan Rockefeller (Alan Rockefeller)
2012-03-27 07:17:21 CST (-0500)

and I see douglas fir needles in the background.

Created: 2012-03-26 20:43:29 CST (-0500)
Last modified: 2012-03-27 07:16:51 CST (-0500)
Viewed: 98 times, last viewed: 2017-06-12 20:01:49 CDT (-0400)
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