leucoagaricus americana?

[r2d2]

Can anyone help me identify this? I believe it is leucoagaricus Americana.

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I found these on the sidewalk just a few blocks down from my house, on the grassy patch by the sidewalk in front of the neighborhood gas station. Looks like it was growing on a pile of buried something or maybe a stump they had partially removed.

Thanks in advance guys!
 

[birdeatingspider]

When asking for an ID, please include a general location.

This articulates the growing conditions for specific fungi, a key factor in identification!

[r2d2]

These were found in mid-late fall in Mid-Hudson Valley, NY. It's about 2 hours slightly northwest of the city.