Observation 27812: Pholiota (Fr.) P. Kumm.

When: 2009-11-05

Collection location: Strouds Run State Park, Athens, Ohio, USA [Click for map]

Who: Dan Molter (shroomydan)

No specimen available

These two small mushrooms were just barely poking through the leaf litter under mixed hardwoods. They don’t look mush like corts to me, but remnants of a cortina are clearly visible.


video screen shot unknown scale
video screen shot unknown scale
video screen shot unknown scale
Dry spores 400x
Dry spores 400x
Dry spores 1000x
Dry spores 1000x
Wet spores 1000x
Wet spores 1000x
Wet spores 1000x
gill edge
gill edge
cap cuticle 100x
cap cuticle 400x

Proposed Names

5% (2)
Recognized by sight
-57% (1)
Recognized by sight
29% (1)
Recognized by sight
61% (2)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Ok Dimi
By: Dan Molter (shroomydan)
2009-11-07 16:10:16 EST (-0500)

Only cheilocystidia were present as far I as could see. They were few and small. I think the shots posted are 1000x, but I don’t remember for sure; they might be 400×. If the magnification is important for ID I can try again.

The other microscopy shots are looking through the thinnest possible layer of cap skin.

more spore shots
By: Dan Molter (shroomydan)
2009-11-07 12:31:09 EST (-0500)

These new spore shots were taken with a digital camera at f-stop 2.8, the lowest my camera will go. The photos are larger, and you can see a little more detail. The pointer also gives an idea of scale.

I tried using my camera when I first got the microscope, but I didn’t think to bump the f-stop down, so the images were very small. Thank you again Douglas.

Thank you, Dan
By: Irene Andersson (irenea)
2009-11-07 09:21:28 EST (-0500)

for explaining your method to get the spore pics.
I have been thinking of purchasing a USB ocular myself, but hesitated as long as I don’t know how high resolution I need to get an acceptable picture..

Not Cortinarius. Smooth spores, apical pore.
By: Dimitar Bojantchev (dimitar)
2009-11-06 22:49:24 EST (-0500)

Dan, good job on the spore shot — the upper one. Now we’re in business. We can see smooth spores with an apical pore. Not Cortinarius — try Psathyrella, Agrocybe, etc. We need pileal covering and cystidia. I cannot recall having seen anything that resembles your material.

By: Dan Molter (shroomydan)
2009-11-06 17:30:00 EST (-0500)

Thank you Douglas. I just tried using my camera and it worked. Look forward to higher resolution spore shots.

Try some other things…
By: Douglas Smith (douglas)
2009-11-06 17:17:37 EST (-0500)

The scope might be fine for you, it is just a screen shot of a movie might be too low in res. To get shots from the microscope, what you can do, is just hold the camera up to the eye piece. That is what I’ve been doing, and it works well enough for me so far. Just try to set the camera for as wide a field as possible (don’t zoom in), and try to set the aperture as far open as possible (low f-stop value), and it should work. To get a better picture, I usually first calibrate the white balance to an empty field (no spores or cells). This will take out the yellow of the microscope lamp and/or the color of the reagent in the mount, and produce a better image.

But usually if you jsut give it a try, putting the camera up to the eye-piece, it works fairly well. Then you can get a photo of the scale on the image also.

cortinas and equipments
By: Dan Molter (shroomydan)
2009-11-06 17:04:45 EST (-0500)

The cortinate veil remnants on the cap margin are pretty distinctive. It reminded me of gymnopilus, but the pin morphology did not look like gymnopilus at all. Cotrinarius looked like the next best name to consider.

I’m using a Chinese microscope that I bought new for $275. It came with a movie camera with no name on it. The camera replaces the eye-peice on the microscope, so I can’t calculate the magnification. There is no brand name anywhere on the microscope or the camera. The camera software is called Amcap, it allows me to record videos. The spore pictures shown here are screen shots from the videos.

The higher magnification photos were taken using the lens marked oil. Lower magnification photos were taken with the objective with the blue band.

By: Douglas Smith (douglas)
2009-11-06 13:45:32 EST (-0500)

I can’t quite tell if those spores have a germ pore or not? Did you see a germ pore on those? Without a germ pore, these might be one of the confusing small Hebelomas, or with a germ pore they might be Agrocybe. The spores don’t look warted, so that takes away Corts.

I’m afraid
By: Irene Andersson (irenea)
2009-11-06 13:37:07 EST (-0500)

there are lots of species with cortina without being a Cortinarius.

Interesting spore pics, what equipment are you using?

Created: 2009-11-06 11:16:11 EST (-0500)
Last modified: 2009-11-06 11:16:11 EST (-0500)
Viewed: 170 times, last viewed: 2017-06-06 05:58:02 EDT (-0400)
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