Observation 104352: Gymnopus luxurians (Peck) Murrill

When: 2012-08-08

Collection location: Jacksonville Arboretum, Jacksonville, Florida, USA [Click for map]

Who: Adam Arendell (julius)

No specimen available

Found on decomposing live oak branch with gynopilus sp. Waiting for spore print.

Edit 08-09-12: White spore print.


Serrated gills

Proposed Names

-16% (2)
Recognized by sight
17% (2)
Recognized by sight: All Lentinus have now been renamed into Neolentinus. Obs. has serrated gills.

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
More Neolentinus
By: Adam Arendell (julius)
2012-08-12 12:41:51 CDT (-0500)

Went back to collection site and found new specimens of Neolentinus species. Currently drying and making prints. http://mushroomobserver.org/104888?q=WGL6 / http://mushroomobserver.org/104887?q=WGL6

I don’t know, Patrick.
By: Daniel B. Wheeler (Tuberale)
2012-08-10 16:13:53 CDT (-0500)

Maybe it applies only to Lentinus found in the PNW. Here’s the website:


Names …
By: Patrick Harvey (pg_harvey)
2012-08-10 14:12:30 CDT (-0500)

If ALL Lentinus have been renamed Neolentinus — why did they bother?
Just curious …

Collection site
By: Adam Arendell (julius)
2012-08-10 13:30:29 CDT (-0500)

I’ll go back to the collection site tomorrow to find more specimens for this ob. Thanks for your input Tuberale.

Just compared to Gymnopilus luxurians
By: Daniel B. Wheeler (Tuberale)
2012-08-10 01:05:45 CDT (-0500)

and the cap color is certainly similar. I don’t believe Gymnopilus has serrated gills, though. I can find no reference to that feature – if it exists.

Adam -
By: Daniel B. Wheeler (Tuberale)
2012-08-10 01:00:51 CDT (-0500)

hope you are drying this or have already dried it. The problem I am finding relates to the cap, specifically the lack of noticeable scales, although to my eye there are some very small scales present. All Lentinus have now been renamed into Neolentinus. But I have been unable to track down a reliable key that includes this obs. It might be poorly collected. It might be something new. In either case, may need a voucher collection for same. Please see if you can find more of it, and post more pics.

Lentinus sulcatus, now known as Heliocybe sulcata
By: Daniel B. Wheeler (Tuberale)
2012-08-10 00:38:22 CDT (-0500)

is not a match, as it requires large scales on the cap, which this obs. does not have. So … maybe Neolentinus?

By: Daniel B. Wheeler (Tuberale)
2012-08-10 00:29:27 CDT (-0500)

Still no discoloration on gills sectioned in photo 3 (with spore print). Without gill discoloration, wouldn’t this match 2) Lentinus sulcatus better? Need to do a search for that on MO for comparison.

Cap: 3cm x 1.5cm
By: Adam Arendell (julius)
2012-08-09 20:38:46 CDT (-0500)

Lentinus detonus is listed as a synonymy with Lentinula boryana (Berk. & Montagne) Pegler in MO and rogersmushrooms.com. L. boryana’s stem is listed as hollow on rogersmushrooms which would back up this obs weak stipe.

Key to Lentinus and Lentinellus in Arora
By: Daniel B. Wheeler (Tuberale)
2012-08-09 19:58:43 CDT (-0500)

suggests 2 possibilities here, neither of which I have seen personally:

1) Lentinus detonus, option 3a in Mushrooms Demystified, p. 141, “Found on hardwoods along gulf of Mexico and in tropics; fruiting body Collybia-like but tough; gills usually staining reddish-brown when bruised.”

2) Lentinus sulcatus, option 9b, p. 142, “Cap up to 4 cm broad, brown to orage-brown or cinnamon, found n hardwoods; widely distributed.”

I see nothing in the obs. about size, so will wait for confirmation of width/height of cap. And I agree, Adam: the stipe wasn’t tough like Lentinula edodes, at least. Nor does it appear fibrous as Lentinula edodes. But there are other species.

There is no indication the gills change color when torn or handled, which would seem to eliminate L. detonsus (option 1 above).

By: Adam Arendell (julius)
2012-08-09 17:15:52 CDT (-0500)

spore print with serrated gills, the stipe wasn’t tough like Lentinula though.

Spore print likely white?
By: Daniel B. Wheeler (Tuberale)
2012-08-08 20:41:23 CDT (-0500)

Gills show notching, suggesting some form of Lentinus/Lentinula/Lentinellus. I’ve never seen one with this stipe, though. Do share the spore print as well.

Created: 2012-08-08 17:29:34 CDT (-0500)
Last modified: 2014-05-29 02:52:17 CDT (-0500)
Viewed: 215 times, last viewed: 2018-05-22 20:27:45 CDT (-0500)
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