I’ve taken another look at the Kilvey sample and it's left me more baffled than I was after my hurried examination last night. Some bract tubes are definitely lobed and lack thickened cells towards the margins (as in integerrima), though some look perfectly good for calyculata! It’s not difficult to find 2-celled leaf lobe apices (rare in calyculata) and leaves that are divided >½ way (both good integerrima features). The largely calcifuge associate list also points to integerrima rather than calyculata, but as both are known occur on mine spoil, it's probably not worth putting any weight on this. I'm seriously wondering if both species might be present? I’ll send my samples on to Sam for expert opinion and will be keeping my fingers crossed. The image below is high resolution, which if you on to open full size and then save it, you can open it in your normal image browser and zoom in much more usefully than is possible in blogger.