Observation 215734: Cotylidia undulata (Fr.) P. Karst.

When: 2014-10-30

Collection location: Norfolk Co., Ontario, Canada [Click for map]

42.6844° -80.4636°

Who: Chris Hay (hayfield)

Specimen available

Minute but common in more open mossy places of this restored tall grass prairie. Not tough or fragile but very flexible/ bendable.
must check microscope for undulations to confirm ID
sequencing is in the works, will update observation later

Species Lists


In situ/ one extra placed on side
variation in four closeups

Proposed Names

61% (2)
Eye3 Eyes3
Recognized by sight: Relatively small size (vs. other spp.), thin and soft, distinct stem, on dry soil among mosses
Used references: Not C. pannosa or C. muscogena from Czech key (Kout and Z’ibarov’a 2013):
Kout J. and L. Zíbarová. 2013. Revision of the genus Cotylidia (Basidiomycota,
Hymenochaetales) in the Czech Republic. Czech Mycol. 65(1): 1–13. http://www.czechmycology.org/_cmo/CM65101.pdf
Based on microscopic features: see pseudocystidia image

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Nice find!
By: Django Grootmyers (heelsplitter)
2016-11-14 02:36:06 GMT (+0000)

It looks like the pictures I’ve seen of C. undulata. I have some resources for IDing North American stipitate stereoids if you’d be interested in those.

Created: 2015-09-08 15:26:03 BST (+0100)
Last modified: 2018-01-03 01:12:06 GMT (+0000)
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