When: 2017-06-29

Collection location: Port Dover, Ontario, Canada [Click for map]

Who: Eva Skific (Evica)

No specimen available

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Thanks Igor…
By: Dave W (Dave W)
2017-06-30 00:26:44 EDT (-0400)

for researching my own observations :-) One patch of “rubrobrunneus” on my property may actually be violatinctus. But the mushrooms there tend to become hypomysized rather quickly. So getting a good read on traits is tricky. Moon Lake is less than a 10 minute drive from my home, and lots of these bitter purplish Tylos grow there. Hope to spend a little more time on these.

Usually,
By: I. G. Safonov (IGSafonov)
2017-06-29 19:41:41 EDT (-0400)

I don’t have much trouble separating the three in the field. Violatinctus is usually the more uncommon of the three. I think it’s the color ambiguities introduced by cameras and then compounded by computer screens that make ID more difficult. Fortunately, I have a pretty good 22" monitor that makes a difference…
In the NJ Pine Barrens we find both rubrobrunneus and plumbeoviolaceus. However, in the past few years I’ve been encountering strange hybrids, e.g. obs 27199 & obs 137365 (entity #1) and obs 246225 & obs 246226 (entity #2), some of which could be violatinctus.
By the way, Dave, you are no stranger to violatinctusobs 207765 and obs 208075.

I guess I just haven’t arrived…
By: Dave W (Dave W)
2017-06-29 19:08:08 EDT (-0400)

at a solid understanding of how to tell these apart. But I think the marbled brown/white cap surface is a good indicator of rubrobrunneus. Also, rubrobrunneus sometimes bruises olivaceus on the stipe surface.

I’m probably about 0.5" of rainfall away from seeing multiple rubrobrunneus mushrooms on my property… three different locations.

I suppose we keep having these discussions because there’s a lot of ambiguity regarding the traits associated with these species.

Dave,
By: I. G. Safonov (IGSafonov)
2017-06-29 18:50:17 EDT (-0400)

I recall we had an in-depth discussion of the bitter trio on MO last year or the year before that (maybe we discuss it every year whenever the controversy arises). :-)
Roody’s book puts rubrobrunneus and violatinctus side by side — it’s tough to tell one from the other in the pix he used for the book.

Another one with dark purple cap.
By: Dave W (Dave W)
2017-06-29 18:31:40 EDT (-0400)

But the marbled-tan appearance on the stipe surface is quite prominent here, strongly suggesting rubrobrunneus.

Maybe I just forget that rubrobrunneus can have such a dark purple cap. This species should be out soon in my yard (near woods). It seems I need to review these things each year :-)

Created: 2017-06-29 17:58:48 EDT (-0400)
Last modified: 2017-06-29 21:17:28 EDT (-0400)
Viewed: 122 times, last viewed: 2019-10-09 19:49:22 EDT (-0400)
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