Epipactis helleborine
Linton wrote an extensive book about the flora of Derbyshire, published in 1903. The front cover of his Flora contained a large illustration in gold leaf of "Rubus durescens", a species of bramble unique to Derbyshire which he had earlier discovered. Linton is credited with the first description of "Rubus durescens". His Flora contained 1,030 species of flowering plants and ferns. He considered around 910 (88%) of these native, 70 (7%) aliens and 50 (5%) casuals. He also included mosses and liverworts. He included two maps of the county and two illustrations of plants he considered special in the area. In addition to the one shown on the cover, he also included a line drawing of "Epipactis atroviridis", which he considered a species new to science that grew locally. The bramble is still recognised as a local species, but the orchid is no longer accepted as valid, and is probably just a form of the broad-leaved helleborine ("Epipactis helleborine").