Observation 18857: Melanoleuca Pat.

When: 2009-02-24

Collection location: Mountain View, Santa Clara Co., California, USA [Click for map]

Who: Alan Rockefeller (Alan Rockefeller)

No specimen available


10.8 micron divisions
10.8 micron divisions
The same image, focused more on the warts

Proposed Names

27% (1)
Recognized by sight
54% (1)
Recognized by sight

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= Observer’s choice
= Current consensus


Add Comment
By: Irene Andersson (irenea)
2009-02-27 03:40:45 CST (-0600)

the genus Melanoleuca is badly in need of revision, and the epithet melaleuca has caused a lot of confusion, just to mention one of them..
If you look at Murrill’s picture and description, I think you will agree that it’s another species than yours:
http://www.cybertruffle.org.uk/... (pict. 4)
(M. stridula sensu Métrod and Kühner, and M. graminicola sensu Favre are probably synonyms).

What you have found, looks similar to one I use to key out as Melanoleuca exscissa – but I suspect that there are more than one species hidden there.

By: Alan Rockefeller (Alan Rockefeller)
2009-02-26 15:47:32 CST (-0600)

M. melaleuca sometimes has harpoon shaped cystidia according to some authors according to this web page. I would like to find out what species it is since its so common. I have a dried sample.

Where are the warted spores?
By: Douglas Smith (douglas)
2009-02-26 03:57:20 CST (-0600)

Are we sure of Melanoleuca even? Where are the amyloid warted spores? The spores I can see, seem to be smooth? What was the reagent?

melaleuca is out of the question
By: Irene Andersson (irenea)
2009-02-26 02:28:41 CST (-0600)

It’s one of the few that lacks cystidia. I could make a wild guess on Melanoleuca excissa, but some pictures of the mushroom would have been nice, at least notes on colours and size of cap and stem – and spore size too.