LIST OF ILLUSTRATIONS XV 



PIG. PAGE 



131. Selaginella (anatomy) 52 



132. {laoetes echinospora 59 



u. lacustris 



133. Jsoetes lacustris (anatomy) . 62 



134. Pleuromeia Sternhergi 70 



135. Selaginellites and Lycopodites 80 



136. Lycopodites lanceolatus 81 



[Council of the Geological Society of London.] 



137. Lycopodites fodcatvs 83 



138. Selaginellites primaemis . 86 



139. Lycostrobus Scotti 89 



140. Picea excelsa 94 



141. Lepidodendron Sternbergii 97 



142. Sigillaria (leaves) 98 



143. Lepidodendron (leaves) 99 



144. Lepidodendron Veltheimianum 101 



145. Lepidodendron leaf-cushion 102 



146. Lepidodendron and Lepidophloios leaf-cushions . . . 104 



147. Lepidophloios leaf-cushion 108 



148-155. Lepidodendron vasculare 112-122 



156. Knorria mirahilis 125 



157. Lepidodendron Veltheimianum {Ulodendron) . . . . 129 



158. Diagrammatic section illustrating the branch-theory of the 



Ulodendroid scar 132 



[Council of the Manchester Literary and Philosophical Society.] 



159. Finns clausa 134 



160. Lepidophloios scoiicus 135 



161. Halonia tortuosa 136 



162-167. Lepidodendron fuliginosum 143-147 



[Council of the Cambridge Philosophical Society.] 



168. Lepidodendron vasculare and L. fuliginosum .... 148 



169. Lepidodendron fuliginosum 149 



170-172. L. fuliginosum 150-152 



173. Lepidodendron obovatum 154 



174-176. Lepidodendron aculeatum 155, 156 



[Oxford University Press : Annals of Botany.] 



177. Stigmaria radiculosa 157 



178. Stigmarian rootlet . 158 



179. Lepidodendron Harcourtii and L. fuliginosum . . .162 



180. Lepidodendron Wunschianum .163 



181. 182. L. Wunschianum 165, 166 



183, 184. L. Wunschianum 168, 169 



[Editor of the New Phytologist.] 



185. Lepidodendron Veltheimianum 173 



186. L. Veltheimianum and L. macrophyllum 176 



