Help with ID

[eat-bolete]

found a lot of these growing out of a mountain of mulch in the state park. Fibrous stalk free gills, same pattern of brown black scabres on cap and stalk, growing in clumps, no smell really, have remnants of veil on a stalk, caps are up to 4.5" in diameter. Stalks show some redness., i guess from bruising.

[Dave W]

Some aspects match Leucoagaricus americanus. But the scales on the stems seem unusual. Most stems in the photos lack a ring. Also, stems are kinda slim for L. americanus.

A white spore print supports Leucoagaricus (or Lepiota or Macrolepiota), brown spore print would indicate Agaricus, and a green print Chlorophyllum molybdites.

[eat-bolete]

Thanks Dave, making a spore print right now

[eat-bolete]

Spores are pale pink. Based on scaly stem I guess it is Macrolepiota procera, but I won't take my chances eating it, not that desperate yet:)

These shrooms were growing nearby on the same pile of mulch. I guess the ones with white speckles are some type of Lepiota as well, spore print is white? What about the other one?

[eat-bolete]

Tricholoma flavobrunneum? Spore print is white.

[Dave W]

Okay, let's try to keep straight which mushrooms are under discussion...

The ones in the fist post seen above are likely not Macrolepiota procera (or any of the NA look-alikes). Too many tine scales on the caps, as opposed to the larger shaggier scales generally seen on mature procera-types (not the true M. procera found in Europe). Also, the procera-types do not stain red/yellow/saffron. One of the photos in the original post shows saffron staining on the stalks. These are interesting. Although they resemble Leucoagaricus americanus is some ways, other aspects appear to be different from this species.

Eat-bolete, are you saying the spore print for the originally posted mushrooms is pale pink? That's also interesting. To my knowledge, all Leucoagaricus and Macrolepota species have white prints. Although, I have printed L. leucothites for which the print eventually turned pinkish... maybe some sort of chemical reaction...? I recommend that you do NOT eat these. To me, this observation represents an unidentified species... at least they have not been IDed to my liking.

Now, the second post.

I think the white ones are Leucocoprinus cepaestipes.

I think the brown-capped ones are Gymnopus luxurians.

Interestingly, Michael Kuo writes, "Gymnopus luxurians, like Leucocoprinus cepaestipes, is almost always found in woodchips, where it grows in clusters. In fact, almost every time I have found Gymnopus luxurians,Leucocoprinus cepaestipes has been fruiting alongside it."

[eat-bolete]

Definitely nailed it on the latter 2 mushrooms. From what I found neither of thdm should be eaten right?

Now, the original post update. The spore print is white, not pinkish, I just used blue paper and that made the spores somehow look pink. I took a closer look and they are just white.

Also, the white cap and stem, and flesh turned brownish if that means anything. No apparent red bruiding from handling, maybe those random red spots don't have anything to do with me handling them.

As for multitude of spots on cap, I saw this photo for M. procera in a book, which, to me, looked close to those I found.

So what's the final verdict?

[eat-bolete]

This is how caps look today...not even brownish but kind of pinkish purple-ish

[Dave W]

The final verdict is the mushrooms in the first post are almost definitely NOT Macrolepiota procera, or any of the similar American species. Your photo of M. procera shows the exact reason I had stated... shaggy scales on the cap, as opposed to the small pointed scales seen on the ones pictured above.

My best guess is these are a somewhat atypical example of Leucoagaricus americanus. This species is edible, but I strongly advise that you do NOT eat any of these. Another possibility is these are a type of Lepiota, a dangerous genus.

Correct about the Leucocoprinus cepaestipes. This should not be eaten. Leucocoprinus is another genus to avoid experimenting with.

[eat-bolete]

Thank you very much Dave I see now what you meant about Macrolepiota, the mushrooms I have definitely lack distinct shaggy scales but are almost smooth and spotted.