MR. W. E. HART (NATURE, June 12) is quite right in correcting me on the subject of the fertilisation of Lotus corniculatus. It is the outer whorl of stamens, those opposite the calyx teeth ...

There is one pretty little clover-type plant growing in both my super-sandy scrubby field and in most of the roadside rest stops and median strips, bird’s-foot trefoil (Lotus corniculatus), that ...