Observation 55251: Melanophyllum Velen.
When: 2010-10-10
(35.59° -80.43° )

Notes: 10-10-10

Habitat:
North Carolina, USA
Found alone, growing from soil in predominantly hardwood forest.
-Maple, Oak, Beech and Poplar (closest to furthest)

Pileus:
8-9cm broad, convex and split, center textured patch, light brown. Smooth red-brown circle around center textured patch, fading back to light brown texture with warts out to margin, light brown veil remnants hanging from margin.

Lamellae:
Free?, close, broad, cream light brown when viewing from above, when viewed from the side the lamellae are rich red.

(I was unable to tell if the lamellae were free or not due to a wasp stinging me on my back, which caused me to jump and toss my specimen into the air… Upon landing it was destroyed, in pieces.)

Stipe:
16-17cm long, 1.5cm wide (maybe give a little), light brown, solid, upper half is powdery, lower half slightly textured and staining blue or blue-green, enlarging at base. Base and some of lower half were under soil.

Spore print color:
none obtained

Microscopy by Alan Rockefeller.

Species Lists

Images

111282
Copyright © 2010 St. Chibes
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Copyright © 2010 St. Chibes
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Copyright © 2010 St. Chibes
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Copyright © 2010 St. Chibes
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Copyright © 2010 St. Chibes
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Copyright © 2010 St. Chibes
132762
Gill Crush Mount 100x (Alan Rockefeller)
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Gill Crush Mount 200x (Alan Rockefeller)
132764
Gill Crush Mount 400x (Alan Rockefeller)
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Spores 1000x, 8.78 micron divisions (Alan Rockefeller)
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Spores 1000x, 8.78 micron divisions (Alan Rockefeller)
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Spores 1000x, 8.78 micron divisions (Alan Rockefeller)
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Spores 1000x, 8.78 micron divisions (Alan Rockefeller)

Proposed Names

60% (8)
Eye3 Eyes3
Recognized by sight
-49% (6)
Recognized by sight: White spores, cap ornamentation

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

Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
Spore color of Melanophyllum
By: Johannes Harnisch (Johann Harnisch)
2011-02-06 18:16:25 PST (-0800)

“Spore fresh greenish then pink to brown.” Keys to Agarics and Boleti Meinhard Moser, published by Phillips.

Your brown colors would come as no surprise to me the spores do become dark with age and perhaps drying darkens them even more.
This is a rather unfamiliar genus perhaps because of it’s rarity.

Quite obviously not Cystolepiota sp. which seem to always have white gills in the first place, never mind the very dark spores

Britney…
By: Matt Sherman (Shermanii)
2011-02-06 15:39:17 PST (-0800)

I’m not sure. I haven’t found much information on the genus Melanophyllum, so I don’t know if spore color change is a characteristic of the genus or just Melanophyllum haematospermum.

I re-hydrated another small piece of the cap last night and a cloud of brown was left behind in the water again.
and
when I pressed lightly on the lamellae with a paper towel to soak up excess moisture, the paper towel was stained brown.
I’m guessing that this is due to the spores?

Hopefully it will pop up around the same area next year.

.
By: Britney Ramsey (Riverdweller)
2011-02-06 09:42:40 PST (-0800)

isn’t one of the characteristics of this genus that the spores change?

Alan…
By: Matt Sherman (Shermanii)
2011-02-06 09:01:29 PST (-0800)

I was re-hydrating a piece of the cap last night and a cloud of brown was left behind in the water.

So I’m not sure about the spore color being white…

Way to robust
By: Johannes Harnisch (Johann Harnisch)
2011-01-27 20:07:03 PST (-0800)

http://mushroomobserver.org/50378?q=3Vnt
here is the one I found this last year
it was quite slender and it was not at all near this robust,

Very interesting find! :D

According to Melzer, spores of M. haematospermum change color
By: Dmitriy Bochkov (convallaria)
2011-01-27 06:29:37 PST (-0800)

The fresh spore print of M. haematospermum is greenish, the next day, it becomes grayish-brown with a hardly noticeable greenish tint, then completely grayish-brown, and, finally, reddish-brown.

OK, this is confusing.
By: Paul Derbyshire (Twizzler)
2011-01-27 06:12:52 PST (-0800)

Elsewhere someone said the spores were green, and elsewhere still that they were pale. Someone posted a URL that also claimed both red and green spores, showing bright red gills in a photo. It said the gills were red with spores and there were green spore deposits on the stuff on the cap margin!

This seems a little bit inconsistent to me — unless the species actually generates multiple colors of spores.

Microscopy Added
By: Matt Sherman (Shermanii)
2011-01-26 10:51:36 PST (-0800)

…by Alan

The name Melanophyllum
By: Irene Andersson (irenea)
2011-01-26 08:34:44 PST (-0800)

could mean just dark gills, not necessarily black. In this genus, they are known to be both dark green or dark red. And spores of M. haematospermum are pale to start with, becoming red when mature.

But this mushroom is about 3-4 times larger than an average haematospermum, and the spores seem to be about the double size too. A very interesting one.

same names?
By: Britney Ramsey (Riverdweller)
2011-01-26 08:10:16 PST (-0800)

further reading shows that Cystolepiota echinata and Melanophyllum haematospermum are the same? http://www.speciesfungorum.org/...

Is there a reason I don’t see that haematospermum can not be proposed?

Also,
By: Christian (Christian Schwarz)
2011-01-26 08:05:54 PST (-0800)

Even at maturity, a green-spored mushroom might appear to have hyaline spores under the scope – the spores of many members of this genus aren’t anywhere near as pigmented as the spores of Agaricus.

So, perhaps the spores Alan was looking at WERE mature, but the green was not obvious.

Entoloma spores are pink en masse, but pretty much hyaline at high power on a scope.

paul
By: Britney Ramsey (Riverdweller)
2011-01-26 07:42:34 PST (-0800)

http://www.mycokey.com/...
is where I read about haematospermum, but it didn’t mention black gills.

“haematospermum”
By: Paul Derbyshire (Twizzler)
2011-01-26 07:31:13 PST (-0800)

That’s an odd name or a white-spored species, wouldn’t you say?

Then again, the genus name says it has black gills and that doesn’t seem to be entirely accurate either. :)

Melanophyllum haematospermum
By: Britney Ramsey (Riverdweller)
2011-01-26 03:20:48 PST (-0800)

seems to be the only name that comes up in searches of Melanophyllum. M.eyrei and M. globisporum are the only others in this genus? No info really available on those two. “Trial Key to Pacific Northwest Lepiota and Allies” was about the only text I could find. This observation seems to have a sheath on the stipe which I don’t really see on other photos of this species. My MatchMaker software only lists haematospermum as well.
At any rate, very commanding mushroom!

(I see on shroomery’s website the spoors are listed as white…)

pileipellis?
By: Erin Page Blanchard (CureCat)
2011-01-26 02:08:18 PST (-0800)

What sort of cap ornamentation did you see that suggested Cystoderma instead of Melanophyllum? Both genera have an epithelium of sphaerocysts.

Blood red gills
By: Christian (Christian Schwarz)
2011-01-25 23:00:30 PST (-0800)

The hyaline spores are immature. It happens in Agaricus, too, which is a fairly close relative of Melanophyllum.

Amazing photos!
By: Drew Henderson (Hendre17)
2011-01-25 21:59:28 PST (-0800)

Never seen this one before- Glad that I have the opportunity!

Microscopy added
By: Alan Rockefeller (Alan Rockefeller)
2011-01-24 13:34:08 PST (-0800)

Micrographs available here.

Excellent find!
By: Christian (Christian Schwarz)
2010-10-11 18:24:45 PDT (-0700)
I agree in full with CC’s genus proposal
Neat mushroom!
By: walt sturgeon (Mycowalt)
2010-10-11 15:57:32 PDT (-0700)

Created: 2010-10-11 14:46:39 PDT (-0700)
Last modified: 2015-11-30 18:15:30 PST (-0800)
Viewed: 605 times, last viewed: 2016-11-19 16:41:13 PST (-0800)
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