Pleated Inkcap (Parasola plicatilis)
Possibly but they are difficult to tell apart with photographs Could also be Parasola leiocephala.
Thanks to @Norwichbirder for help and comments.
Frosty Bonnet (Mycenae ascendens)
The cap isn't unlike Inocybe hysteria, but this would have a scaly stipe too.
Sulphur Tuft (Hyphaloma fasciculare)
Twig Parachute (Marismiellus ramealis)
Brown Birch Bolette (Leccinum scabrum) or Scaber Stalk
The underside doesn't change when bruised and there is no colouration when cut.
Fairy Inkcap (Coprinellus disseminatus)
Young Sulphur Tuft or…?
The ? was moving in the right direction for this one.
Sulphur Tuft always have a yellow stem even when young.
which makes this
Clustered Brittlestem (Psathyrella piluliformis)
Bleeding Oak Crust perhaps?
Hairy Curtain Crust (Stereum hirsutum)
Oak Mazegill (Daedalea quercina)
Fly Agaric (Amanita muscaria)
Mycena Sp Bonnet Sp
Probably faded Mycena galericulata but not really confirmable from the pictures.
Bracket Sp? A harsh velvety feel on Hazel
Hazel Porecrust (Dichomitus citricremeus
Fungus Sp A bit too wet to tell.
As ever a huge thanks to James Emerson (@Norwichbirder) for help with comments and ids.