Looked very similar to Forget me not but the way the flower opens is quite different I think. There was also one mauve flowered one nearby. Growing on a stony riverbed in a low alpine area.
This orchid has only been found twice, by myself and one other person. Eric Scanlen dubbed it Corybas "tri Arthurs" in the NZNOG journal, but I don't know whether it has yet been formally classified.
isolated from necrotic patches on living leaves old man's beard. A pink slimy yeast. When put in the fridge for a week the growing edge became green filamentous and with hyphopodia-like cells. Sequence says this former variety of A. pullulans, originally isolated from subglacial ice in norwegian sea-water and also found in house-dust in the USA. New to NZ
These three pics taken by my Aunty, at Kairaki/Waimakariri river mouth.