Cactu found these growing on wood.

Interesting black staining.

Pleurocystidia absent. Cheilocystidia present, odd shapes.


Gill cross section, 40x
Gill cross section, 100x
gill face 400x
cheilocystidia 1000x
cheilocystidia 1000x
cheilocystidia 1000x
Spores 1000x
Spores 1000×. 10.00 micrometer divisions.
Spores 1000×. 10.00 micrometer divisions.
Spores 1000×. 10.00 micrometer divisions.

Proposed Names

49% (2)
Recognized by sight: black staining, collybioid stature, on wood, weird cheilos

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= Observer’s choice
= Current consensus


Add Comment
there is at least
By: Danny Newman (myxomop)
2016-06-14 12:33:38 PDT (-0700)

one other blackening Hydropus, H. fuliginarius, but I’ve never looked into it enough to know if it is definitely a distinct sp., whether it occurs in the Neotropics, and if so (on both acconuts), how to distinguish it from H. nigrita.