Amanita ?

[BubikolRamios]

amsl 550, pasture land, as far as I can see now, spore print will not be white ...
http://agrozoo.net/jsp/Galery_one_image ... 7b429409b1

[abeja]

Hi,
the spore print will be the same colour as Pluteus, with this volva it is Volvopluteus and because of the size it must be Volvopluteus gloiocephalus. (formerly Volvariella gloiocephala)
I just saw pictures of another species, which can grow in (southern?) Europe (Spain, Italy): Volvopluteus earlei - but it is much smaller (and has some different micro-features.)

https://en.wikipedia.org/wiki/Volvoplut ... iocephalus

[BubikolRamios]

Thanks.
Grooved = nearest term I can find.
Local page in translation: "grooved form is darker gray brown colored, the cap edge is grooved"
The OP image I think is exactly that.

No latin f., var. there. If exists something like that in latin, about that grooved form ?

[abeja]

I didn't see anything about forms or varieties.
But your mushroom shows indeed a darker colour than I know. In the descriptions it is sometimes mentioned that it can get darker (with some brown colour, especially in the middle) with age, the rim might be striate because of transparency.