Observation 216020: Russula foetentula Peck

When: 2015-09-13

Collection location: Boston, Massachusetts, USA [Click for map]

Who: charleshu

No specimen available

Proposed Names

-49% (3)
Recognized by sight
Based on microscopic features
46% (2)
Recognized by sight
46% (2)
Recognized by sight
53% (1)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Latex is never difficult to detect…
By: Dave W (Dave W)
2015-09-14 22:57:02 EDT (-0400)

in L. volemus. Among the hundreds of L. volemus that I have collected, and the other hundreds I have left behind in the woods, I have never seen an example with a grooved/striate cap margin.

This is most likely one of the foetid Russulas.

By: Dave W (Dave W)
2015-09-14 07:58:50 EDT (-0400)

sometimes latex is difficult to detect; there may be a very small amount. Gently pressing the cut context of a mushroom against your finger, or a piece of paper, often reveals a tiny bit of liquid.

But this one does not look like a Lactarius. I think it’s a Russula. The “Russulaceae” proposal reflects my initial indecision, as this label represents a broad category of mushrooms that includes both genera Russula and Lactarius.

If you wish to post a mushroom, but really don’t know what to call it, then… if the mushroom has gills propose “Agaricales”, pores “Boletaceae”, or a polypore "Polyporales.’

it is not Latex
By: charleshu
2015-09-13 23:41:14 EDT (-0400)

Thank you, Dave.
I know I was wrong. I just cut and did not see bleeding.
It is my second day really touching a wild mushroom. I am sure I cannot challenge your $20 bet. After your post I just realized Lactarius means oozing.

I just compared with Russulaceae Lotsy online. All matches but only color of this one is not that bright.

Was latex observed…
By: Dave W (Dave W)
2015-09-13 22:51:29 EDT (-0400)

oozing from a cut? Some of the Russula species (foetid group) occasionally have liquid droplets on the gills.

I’d bet $20 (my personal limit) this is not Lactarius hygrophoroides, which does not have a grooved cap margin and has gills more widely spaced than what is seen in this observation.

Created: 2015-09-13 16:00:20 EDT (-0400)
Last modified: 2015-09-28 20:48:38 EDT (-0400)
Viewed: 106 times, last viewed: 2017-08-08 16:22:00 EDT (-0400)
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