Has found 'Potentilla rupestris' in the Breiddin Hills, near border with Shropshire, which from "English Botany" he is led to believe had been presumed a doubtful native due to it not being found again, will send Smith specimens if interested. Believes the hill he found it on may be the same as where [John] Ray first discovered it. Has also found two other rare plants, in the same place, mentioned by Ray; 'Veronica hybrida' and 'Lychnis Viscaria', and 'Hieracium murorum'. Desires to fix 'Veronica hybrida' as distinct from 'Veronica spicata', compares with a description only of the latter. Hopes to see a supplementary volume to "English Botany". Describes a 'Briza' unlike any of the Enlgish species and an 'Aspidium' which does not correspond with [James] Sowerby's figures, criticises Sowerby's plates of ferns as "not sufficiently characteristic of the different species".