Observation 24999: Psathyrella septentrionalis A.H. Sm.

When: 2009-09-06

Collection location: Southwest Barry Co., Michigan, USA [Click for map]

Who: Jon Reck (Jon Reck)

No specimen available


I used a nikon d90 with a 105mm micro nikkor at 52mm extension with a reversed 35mm lens attached to the front.

Proposed Names

30% (2)
Eye3 Eyes3
Used references: Mushrooms of Northeastern North America- Bessette, Bessette and Fischer

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
much sharper image of gills
By: Jon Reck (Jon Reck)
2009-09-12 10:36:09 CDT (-0500)

I was able to get a much sharper magnified image of the gill surface by changing my lens setup.

camera not quite sharp enough to see pleurocystidia
By: Jon Reck (Jon Reck)
2009-09-07 11:03:49 CDT (-0500)

Camera not quite microscopic enough to see pleurocystidia- although I tried- (uploaded two more photos) and I really can’t call the young gills pinkish.

Probably a stretch to identify as septentrionalis.

Thanks for you help, Douglas.

Nice photos.
By: Douglas Smith (douglas)
2009-09-07 03:03:09 CDT (-0500)

Nice photos here, good capture of all details. Looks like a Psathyrella, although I don’t know if there is enough detail to get to P. septentrionalis, maybe. The main book on Psathyrella for the US is the Smith monograph, with some 300-400 species in it. Although most people can’t quite seem to figure out how to use it… need to know if there are pleurocystidia, and then if the gills were pinkish when young? Like that is a useful feature…

Created: 2009-09-06 19:04:07 CDT (-0500)
Last modified: 2009-09-06 19:04:07 CDT (-0500)
Viewed: 190 times, last viewed: 2018-10-12 14:52:14 CDT (-0500)
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