I have one in blue linen, Barney's house label. I've never in my life worn a shirt outside the jacket, no matter what Sean Connery wears.
I, too, believe it to be called a camp collar. I've never worn mine with a tie, but with a bit of starch the collar can stand up a little better than yours seems to be doing in the picture. I wouldn't wear it with a tie, though.
and what happened to the cat with the headphone rocking out in your avatar? I loved that.