Common in the NJ Pine Barrens too, although really hard to see unless it's in bloom, it's so small. The plant with the oval leaves is cranberry (Vaccinium macrocarpon.)

Here I have seen Utricularia cornuta growing in a true bog. U. cornata IME grows in more water than the cranberry in Weedwoman's photo shows, though cranberry was growing nearby in the bog mat (usually both V. macrocarpon and V. occycoccos around here).

There are a bunch of other species here in my part of NH (central), some of which are yellow, but a couple of which have purple flowers. I'll have to keep an eye out. It will give me an excuse to visit bogs of which there are four with which I am familiar within an hour or two.