Key features are 1) Flowers barely exceed leaves and 2) Flowers nod down when open (pic 1, 2 & 3) or don't open much at all (pic 4 & 5). Only 2 of about 100 flowers were open on this 20 degree, sunny-showery day.
Growing in boggy area with plants like Drosera arcturi. From Neville Walsh, they are "very prone to that inky tip damage, although they seem to flower OK from that. It's pretty much an obligate dweller of sphagnum peats."