Hey, T. atronitida has a shiny black PAL, with a strong transition to the short, yellow tip, that is notched in a different way to the T. nuda group. Compare with these photos https://nre.tas.gov.au/Documents/Thelymitra-atronitida-listing-statement.pdf https://inaturalist.org/observations?taxon_id=1121164
Hi Eamonn, respectfully disagree here. Flowers were large, column arms weren't curved upwards and post-anther lobe wasn't notched in the way it appears in those T atronitida photos.