Observation 22489: Megacollybia rodmani R.H. Petersen, K.W. Hughes & Lickey

When: 2009-06-23

Collection location: Forest near Elgin St., Pembroke, Ontario, Canada [Click for map]

Who: Paul Derbyshire (Twizzler)

No specimen available

Large, tall mushroom — maybe 6cm across and 5 high. Grey-green cap with streaky markings, often in parallel pairs or, less often, trios. Stem and gills creamy off-white. No ring on stem. If there was a bulb or volva it was buried fairly deep. Gills free or nearly so. Plenty of lamellulae and relative size of cap to stem width weighs against Russula, but the stem snapped in a way that is somewhat reminiscent of Russula. Only the one specimen observed, in Zone 11 near many tree species.

Proposed Names

92% (2)
Recognized by sight: Megacollybia platyphylla in most field guides.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
That was quick
By: Paul Derbyshire (Twizzler)
2009-06-23 22:19:59 CDT (-0400)

Thanks. Looks like a pretty good match, also on the basis of size, habitat, and season. The only other similar-looking veilless mushroom attaining similar size in Lincoff seems to be Russula variata, which has conspicuously forked gills and season differences from this one.

I might be back at the site soon (Friday, perhaps) and if the mushroom’s remains are still there, I’ll dig up the stipe base looking for the rhizomorphs mentioned in various places for M. rodmani. And looking to see if any more pop up.

It’s nice to read that the appearance of this species indicates the Northeast season is about to start ramping up (though experience combined with my calendar also told me that).

Created: 2009-06-23 20:33:41 CDT (-0400)
Last modified: 2012-01-11 21:55:57 CST (-0500)
Viewed: 72 times, last viewed: 2018-05-09 04:22:46 CDT (-0400)
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