_Sigillaria Brardi_ 225 204, 205. _Stigmaria ficoides_ 227, 228 206. _Cyperus papyrus_ 230 207, 208. Stages in the development of _Sigillaria_ 236 209. _Stigmariopsis_ 237 210. _Stigmaria_ 241 211. _Bothrodendron punctatum_ 250 212. _Bothrodendron minutifolium_, _B. punctatum_, _B. kiltorkense_ and _Lepidostrobus Olryi_ 252 213. _Bothrodendron minutifolium_ 254 214. _Bothrodendron Leslei_ 258 [Trustees of the British Museum.] 215. _Bothrodendron mundum_ 259 216. _Bothrostrobus_ 263 [Council of the Manchester Literary and Philosophical Society.] 217. _Omphalophloios_ 265 218. _Lepidocarpon Lomaxi_ 273 219. _Miadesmia_ and _Bothrodendron_ 276 220. _Angiopteris evecta_ and _Cycas revoluta_ 283 221. _Osmunda cinnamomea_, _O. regalis_, and _Todea barbara_ 286 222. _Schizaea elegans_ 287 223. _Aneimia rotundifolia_ 288 224. _Aneimia flexuosa_, _A. phyllitidis_, _Hymenophyllum_, _Matonia pectinata_, _Thyrsopteris elegans_, _Gleichenia_ 289 225. _Gleichenia dicarpa_ 290 226. _Gleichenites Rostafinskii_, _Gleichenia dicarpa_, _G. dichotoma_ 290 227. _Matonia pectinata_ 292 [Council of the Royal Society.] 228. _Matonia pectinata_ 293 229. _Thyrsopteris elegans_, _Cyathea spinulosa_, _Dicksonia coniifolia_, _D. culcita_, _Davallia concinna_, _Alsophila excelsa_ 294 230. _Dicksonia Bertervana_ 295 [Trustees of the British Museum.] 231. _Dipteris quinquefurcata_, _D. conjugata_, _D. Wallichii_, and _Polypodium quercifolium_ 297 232. _Davallia aculeata_ 299 233. _Polypodium Billardieri_ 302 234. _Polypodium quercifolium_ 303 235. _Hemitelia capensis_ 304 236 _a_, 236 _b_. _Pteris aquilina_ 305, 306 [Council of the Linnean Society of London.] 237.