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CureCat said:
Yeah, those are Macrolepiota procera:

http://www.mushroomexpert.com/macrolepiota_procera.html

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Macrolepiota species on the other hand are
not widespread, and there are many local species,
with limited distributions. One example is
M. procera which was once thought to be widespread,
and recorded all over the world. Now, the
Australian species is called M. clelandii, the one
in South and Central America M. colombiana;
the Japanese one is close to the European one,
but slightly diff erent; and the North American
one is also a diff erent species, yet to be described
(it might even be several . . .). Th e real M. procera
is now only known from Europe, and its eastern
extent is still not known

The Shaggy Parasol and the Green-spored
Parasol look very similar—both have big whitish
caps with brown scales, a beautiful fringed ring
on a white smooth stem, and they both change
to reddish/orangish when scratched on the stem.
Even the spores and the cells on the gill edge are
very similar, though the spores in the Greenspored
Parasol acquire pigment late in life and
turn the gills green.

Chlorophyllum species have smooth stems,
whereas the stems of Macrolepiotas are covered in
a plush-like material which forms bands when thestem grows. So the stems can be striped like tigers,
but when the material has the same color as
the background, the stripes may not be obvious.
Th ere are also consistent diff erences in the structure
of the scales on the cap, and in spore shape
and the germ pore. In Macrolepiota the pore is
a real hole, while in Chlorophyllum it is more a
depression, as if someone had put her thumb on
the end of the spore and pushed it in.
Besides the diff erences in appearance, Chlorophyllum
and Macrolepiota species typically grow
in slightly diff erent habitats. Chlorophyllum species
like it a little bit more disturbed and nutrient
rich, which means that they are more commonly
encountered in urban areas, including compost
heaps and ruderal areas.
However, this is not the end of the story
because the Shaggy Parasol comes in diff erent
shapes and colors. One with a big bulbous base
and big scales has had several names applied to
it, including var. hortensis and var. bohemica (see
e.g. Arora, 1986). Alas, these names were not
published following the rules. More importantly,
the characters used to distinguish these varieties
do not quite hold up—big bulbous bases and
big scales do not always go together, nor as was
claimed does the width of the germ pore suffi ce
to distinguish big-scaled or wide-bulbous specimens.
However, with the help of the molecules,
it became clear that there are good characters
that consistently diff erentiate three species in the
temperate parts of North America and Europe.
Species #1 has a sudden abrupt bulb at the base
of the stem, and narrow cells on the gill edge. A
second has a gradual bulb at the base of the stem
and relatively broad cells on the gill edge. Th e
third has relatively small spores and hardly any
diff erence in color between the scales on the cap
and the background. For the fi rst one the name
“brunneum,” based on a species described by
Farlow and Burt (1929) in the beautiful Icones
Farlowianae, appeared to be appropriate (Vellinga
2003) (Fig. 1). Th e second keeps the name Chl.
rachodes (Figs 3 and 4). Th e third is Chl. olivieri
(Fig. 5), and Table 1 lists the three species with
their most characteristic features.http://plantbio.berkeley.edu/~bruns/ev/vellinga_2007_shaggyparasol.pdf

well in 10 years maybe we can call something and  still be like that for more time , nah  just kidding it will never ends and we call it evolution constand change .

i have eat what i think was procsera and  was really not good , by the way the article  took about the clades and how with molecular study is more easy to tell all apart

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Juke Adro said:
I really need to buy a microscope

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