Observation 18935: Armillaria (Fr.) Staude
When: 2009-02-26
Herbarium specimen reported

Notes: Just found this one little cluster in grass next to trail in Nothofagus pumilio forest (mid-elevation); CAP 3-5 cm; FLESH white, unchanging; GILLS whitish, slightly notched; STIPE 40 × 7 mm, solid, white shiny-striate above the flaring ring, same texture and color as cap on lower side of ring and on stipe below ring, abrupt asymmetric bulb at base, fine short white mycelial fuzz at base; SPORE couldn’t get convincing print or see them clearly at 20x — in both cases there were tiny dark brown flecks but never in large enough numbers to be conspicuous — I think this specimen was simply immature; OTHER no odor noticed.

(number 0226.7, page 193)

Proposed Names

-34% (2)
Recognized by sight
64% (3)
Recognized by sight: Can’t see any trace of brown spores

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Not on wood.
By: Jason Hollinger (jason)
2009-03-04 07:08:56 PST (-0800)

Not sure how useful Demystified would be down here. It hardly works outside of California, let alone in a different hemisphere.

Had never considered Armillaria, thanks!

were thy growing on wood?
By: Johannes Harnisch (Johann Harnisch)
2009-03-03 15:46:55 PST (-0800)

try using David Aroras book Mushrooms Dymistified for identifying it

By: Erin Page Blanchard (CureCat)
2009-02-28 12:26:29 PST (-0800)

Another possibility is Leucopholiota, though the scales of this mushroom seem less prominent. As the name would suggest, the spores will be white and are amyloid, where as Pholiota has brown spores which are either inamyloid or weakly dextrinoid.

Created: 2009-02-27 12:45:04 PST (-0800)
Last modified: 2009-02-27 12:45:04 PST (-0800)
Viewed: 67 times, last viewed: 2016-10-22 17:48:28 PDT (-0700)