Observation 133131: Russula subgraminicolor Murrill
When: 2013-05-07
No herbarium specimen

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awesome…
By: Richard and Danielle Kneal (bloodworm)
2013-05-07 22:49:37 EDT (-0400)

it will be in the mail ASAP.

Buyck and Adamcik 2011
By: Brian Looney (GibbiPicasso)
2013-05-07 22:45:49 EDT (-0400)

I see that Slavomir Adamcik published on this type, and he does mention that the pileus is “disrupted-areolate, composed of of inflated hyphal terminations similar to R. virescens, with terminal cells often clustered in tufts”. I suppose that these tufts may translate to a pruinose appearance, though I can’t imagine the pileus being fully areolate with Murrill describing the species as glabrous. This is especially true since Murrill based most of his species determinations on macrofeatures. I might get a chance to sequence this and we can see where it falls out.

according to that key…
By: Richard and Danielle Kneal (bloodworm)
2013-05-07 17:56:35 EDT (-0400)

Russula subgraminicolor is not glabrous…

“Cap sometimes appearing smooth and somewhat pruinose, but actually obscurely and minutely areolate-scaly (easily observed with a hand lens as well as on dried material), sometimes only near margin, green to bluish green or metallic green, lacking pseudoparenchymatous layer (with dispersed extremities under the microscope).”

Maybe section Heterophyllae
By: Christian (Christian Schwarz)
2013-05-07 17:44:26 EDT (-0400)
Brian…
By: Richard and Danielle Kneal (bloodworm)
2013-05-07 17:38:44 EDT (-0400)

i collected it just for you.
email me an address to send it to and i’ll get it out.
thanks…

Pruinose
By: Brian Looney (GibbiPicasso)
2013-05-07 17:37:39 EDT (-0400)

The pileus here is pruinose, which would disqualify it from being Russula subgraminicolor (glabrous and slightly viscid). Again I would suggest section Rigidae, but I have no idea what subsect. it might be. I’ve never seen anything like this. If you happen to still have the specimen, I would be super-interested in looking at it…

Created: 2013-05-07 16:35:52 EDT (-0400)
Last modified: 2013-05-07 22:35:57 EDT (-0400)
Viewed: 131 times, last viewed: 2016-08-16 17:39:46 EDT (-0400)
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