It might be a Russula but the photos alone can’t rule out other genera, such as Lactarius, (though the absence of any bleeding suggests not) or Tricholoma – to give two examples. If you suspect Russula (or Lactarius), try to break off a piece. In fresh specimens of those genera the cap (or stem) breaks fairly cleanly – almost like snapping a stick of chalk, whereas in other genera the tissue doesn’t break cleanly. Some people say that in other genera it’s a bit like trying to break a stick of celery – you can break it to some extent but you are left with come fibrousy bits. It’s not a foolproof test since it won’t work as well if your Russula or Lactarius has started to dry out.
Thanks so much for this. I went back and tried the snap test - the cap snapped quite cleanly like a lactarius (L. deliciosus were also growing nearby) but the stem didn't break cleanly at all. So probably not russula.