Thanks for examining them, Don.

If it is, my pix are a great deal better than University of Florida's, which is surprising since they generally have very fine photos on their site. P. flavipes is listed for New Hampshire on UNH checklist.

based on the Florida images would be P. ruficorne, in which case they look pretty similar, and this species is also known from NH. I suppose someone could trek to the collection to settle it (who?). There are two groups each with a number of species, the shiny, larger, more elongate ones; and the shorter, more oval, dull ones (and then the one with red spots - no problem). Having the specimens in hand is really preferred to pursue species-level id's within these groups.

I got another today in a nook in a shelf fungus growing on birch.