Companion volume VI is \'The Ferns of Great Britain and Their Allies the Club-Mosses, Pepperworts, and Horsetails\'. Beautifully illustrated reference volumes to British flora, undated but likely mid-19th century.Condition: All volumes have extremely shelfworn, rubebd boards, faded and discoloured, marked, bits of covering missing, bits of spine missing; volume six is especially bad. Volume one has a dedication to a previous owner on front FEP. All volumes have internal foxing and marks, some have had plants pressed inside them which have left marks, but the majority of the illustrations are unaffected and all pages are readable.