The ferns of Great Britain, and their allies the club-mosses, pepperworts, and horsetails, London, Printed for the Society for Promoting Christian Knowledge, 1855, Great Britain, ferns, pteridophyta, the ferns of Great Britain and their allies the club-mosses, pepperworts, and horsetails, book, eukaryota, viridiplantae, plant, plants, plantae, streptophyta, streptophytina, embryophyta, tracheophyta, club-moss, lycopodiophyta, lycopodiopsida, lycopodiales, lycopodiaceae, lycopodium, lycopodium clavatum, common club-moss, lycopodium clavatum, lycopodium annotinum, interrupted club-moss, stiff club-moss, lycopodium annotinum, lycopodium alpinum, savin-leaved club-moss, alpine club-moss, lycopodium alpinum, lycopodium inundatum, lepidotis inundata, lycopodiella inundata, marsh club-moss, bog club-moss, lycopodium inundatum, lepidotis inundata, lycopodiella inundata, isoetopsida, selaginellales, selaginellaceae, selaginella, selaginella selaginoides, lycopodium selaginoides, lesser alpine c