Observation 191683: Psathyrella conissans group

When: 2014-10-10

Collection location: Deep River County Park, Hobart, Indiana, USA [Click for map]

Who: Marielle Biscocho (mbiscoch)

No specimen available

-This specimen was associated with the soil, and it was found growing gregariously and scattered around the area.
-It had a faint/mild smell.
-Different sized samples were collected, but the sample that was believed to be the most mature was measured. The diameter was about 2.5 cm.
-The surface of the pileus was smooth, dry, and dull.
-The shape of the immature sample was broadly parabolic, but the more mature forms were more convex.
-The dark orange brown cap’s margins were smooth and not lined.
-The flesh was white.
-The pale orange stipe was centrally located. It was about 4.3 cm in length and 0.4 cm in width.
-When it was cut in half, the stipe was solid and equal shaped.
-The surface of the stipe was dull, dry, and smooth.
-The base was inserted.
-The light apricot colored gills were adnexed and even. It appeared to have two lamallae tiers.
-The spore print was white. Under 40x magnification, the spores looked like they were jelly bean shaped. Also, I was able to find cystidia that might be considered “fusiform”.
-Another thing to note was the white web-like material that covered the gills of the immature form.


Mature form
Mature form gills
Immature forms
Immature forms associated with soil
Web-like material covering the gills of the immature form
Mb77 spores.jpg
Smooth, Jelly bean shaped spores (40x)
MB77 cystidia.jpg
Fusiform cystidia (40x)

Proposed Names

56% (1)
Recognized by sight
84% (1)
Recognized by sight
85% (1)
Recognized by sight
3% (2)
Recognized by sight
81% (1)
Recognized by sight: http://www.first-nature.com/...
Used references: DNA sequencing and blast scores

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
White spores?
By: walt sturgeon (Mycowalt)
2014-12-04 16:18:58 PST (-0800)

The gill color and aspect suggest a Psathyrella in the Psathyrella conissans group. These have ruddy colored spores.

Created: 2014-12-04 14:15:27 PST (-0800)
Last modified: 2014-12-15 10:45:17 PST (-0800)
Viewed: 46 times, last viewed: 2018-03-18 22:40:02 PDT (-0700)
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