There was no chance of flowers on one of other rarities here. Land Quillwort Isoetes histrix is a fern-like plant. I often find quillworts on the bottom of lochs, but this one grows on dry land, or rather on land that is dry in the summer. The stomata form two pairs of lines of white dots that run along the leaves, which is a useful feature to distinguish the quillwort from other rosettes, like the squills Scilla.
Later we headed across fields with more Land Quillwort towards Carn Caerthillian, the clover hotspot of all England. North of the valley we visited a small mound where there was a good population of Twin-headed Clover, more Dwarf Rush, Chives Allium schoenoprasum, and a few withered plants of Upright Chickweed Moenchia erecta. Near here we found our first Upright Clover Trifolium strictum.
This is a spiky little clover, very distinctive with its long leaflets and large stipules, both with saw-toothed edges, and with long-stalked flower-heads. On the coast path to Caerthillian Cove we found the last of the rare Lizard clovers, Long-headed Clover Trifolium incarnatum subsp molinerii. If Upright Clover is a spiky plant, Long-headed Clover is a soft, furry one.
When we reached Caerthillian valley we found legumes in abundance on some of slopes. More Twin-headed and Upright Clovers, and Hairy Bird's-foot-trefoil Lotus subbiflorus.