Observation 109010: Lactarius thyinos A.H. Sm.
When: 2012-09-07
No herbarium specimen


Copyright © 2012 Erlon Bailey
Copyright © 2012 Erlon Bailey
Copyright © 2012 Erlon Bailey
Copyright © 2012 Erlon Bailey

Proposed Names

92% (2)
Eye3 Eyes3
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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By: Erlon (Herbert Baker)
2012-09-07 18:55:10 PDT (-0700)

Although all three are associated with conifers, as far as I know L. thyinos is the only one that prefers boggy areas.

L. thyinos is the best name because it was found in the northeast in a very boggy area dominated by conifers(including Albies sp).

I would go as far to hypothesize that the western species, found in dryer areas, is not conspecific with L. thyinos. Was there any DNA work done with the western group in that paper?

By: vjp
2012-09-07 18:20:00 PDT (-0700)

“Lactarius salmonicolor, L. thyinos and L. laeticolor share the lack of a green discoloration, the large spores with a thin ornamentation and striking macrocystidia. They all are associated with Abies (the association of L. thyinos with Abies was personally communicated by Yves Lamoureux).”

What makes L. thyinos the best name for this observation? It could be L. thyinos.. based on the evidence what makes you so sure?

edit: nvm because L. salmonicolor was described from Europe. So all American material should be considered L. thyinos?

By: Erlon (Herbert Baker)
2012-09-07 17:57:02 PDT (-0700)

Can you quote the part where is said the habitats overlap, I missed that part.
It’s completely possible that the entire north American group represents L. thyinos; since L. salmonicolor was originally described from Europe not America.

Regardless, L. thyinos is the best name for this taxon.

Not sure why you shot the name down, but have a go if you wish. lol

By: vjp
2012-09-07 17:43:04 PDT (-0700)

L. thyinos and L. salmonicolor are microscopically and macroscopically identical but differ in habitat and dna? According to that paper even the habitat overlaps.

Wet/boggy conifer forest..
By: Erlon (Herbert Baker)
2012-09-07 16:49:19 PDT (-0700)


The idea that they found them conspecific and yet still admit a habitat difference is laughable.

DNA work has not found the assumption of synonymy to hold any merit; they are closely related.

By: vjp
2012-09-07 16:30:14 PDT (-0700)

“In all respects except for habitat, L. thyinos and L. salmonicolor are identical, so we have placed them in synonymy” Milk Mushroom of North America B/H/B pg. 237

Created: 2012-09-07 15:43:30 PDT (-0700)
Last modified: 2013-06-30 17:36:56 PDT (-0700)
Viewed: 122 times, last viewed: 2016-12-01 08:54:34 PST (-0800)
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