Observation 11942: Tetrapyrgos nigripes (Schwein.) E. Horak

When: 2008-09-29

Collection location: Hershey, Pennsylvania, USA [Click for map]

Who: James V. Gallagher IV (lbjvg)

No specimen available

Small white mushroom. Lamellae: distant, white. Pileus: white, convex. Spore print: white. Spores: triangular, 9 – 10 um. Found growing on a hardwood twig. Stipe: thin, darker towards base.


Proposed Names

75% (2)
Used references: Mushrooms and other fungi of North America, Roger Phillips.
Based on microscopic features: The triangular spores seem like they should be distinctive. M. nigripes has triaular spores but the stipe is described as being much shorter. However picture #1 in the Audubon field guide shows longer stipes.
94% (3)
Recognized by sight: New name

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= Observer’s choice
= Current consensus


Add Comment
beautiful spore shot. you rock!
By: Debbie Viess (amanitarita)
2008-10-05 10:41:03 PDT (-0700)
By: Douglas Smith (douglas)
2008-10-05 10:37:13 PDT (-0700)

You got a spore shot! Nice! I was wondering about a spore shot for this species, that is a good thing to have for the site. This have fairly unique spores, and actually was moved to another genus. I’ll update the species listing to point to the new genus, so this can get listed next to other obs.

Created: 2008-10-04 10:02:45 PDT (-0700)
Last modified: 2008-10-04 10:02:45 PDT (-0700)
Viewed: 88 times, last viewed: 2019-01-23 06:07:28 PST (-0800)
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