Growing on grass stems in upland grassland. Leaves 5mm long. Most capsules eaten, only one left - seta 2.5cm long. Couldn't get my phone any closer, so photos not very good. Not quite sure what it is.
Images of microscopically confirmed specimens on a basalt outcrop in Cressbrook dale
Same observation with Jackson: https://www.inaturalist.org/observations/211251538
Same observation with Jackson: https://www.inaturalist.org/observations/211250121