〃 139. Spores of the same rust × 320. 〃 140. Leaf of Wheat with Corn rust (_Trichobasis rubigo-vera_). 〃 141. Pustules of the same rust × slightly. 〃 142. Spores of Round corn rust × 320. 〃 143. Tuft of spores of Elongated corn rust (_Trichobasis linearis_) magnified. 〃 144. Spores of Elongated corn rust (_Trichobasis linearis_) × 320. 〃 145. Leaf of Groundsel with its rust (_Trichobasis Senecionis_). 〃 146. Spores of Groundsel rust (_Trichobasis Senecionis_) × 320. 〃 147. Wild Rose with Golden rust (_Uromyces Ulmariæ_). 〃 148. Spores of Golden rust × 320. 〃 149. Leaf of Vetch with Long-stemmed rust (_Uromyces appendiculata_). 〃 150. Spores of the same × 460. 〃 151. Leaf of Common thistle with Sweet-smelling rust (_Trichobasis suaveolens_). 〃 152. Spores of Sweet rust (_Trichobasis suaveolens_) × 320. 〃 153. Spermogone of Sweet rust, from common thistle, × highly (_De Bary_). 〃 154. Clover leaf with Short-stemmed rust (_Uromyces apiculosa_). 〃 155. Spores of Short-stemmed rust × 320. 〃 156. Leaf of Pilewort with its rust (_Uromyces Ficariæ_). 〃 157. Spores of Pilewort rust (_Uromyces Ficariæ_) × 320. 〃 158. Portion of leaf of _Luzula_ with Oblong rust (_Trichobasis oblongata_). 〃 159. Spores of Oblong rust (_Trichobasis oblongata_) × 320. VIII. 160. Leaf of Sallow with its rust (_Lecythea capræarum_). 〃 161. Spores of Sallow rust (_Lecythea capræarum_) × 320. 〃 162. Bramble leaf with Ringed rust (_Lecythea gyrosa_). 〃 163. Pustule of Ringed rust (_Lecythea gyrosa_) × slightly. 〃 164. Spores of Ringed rust (_Lecythea gyrosa_) × 320. 〃 165. Purging Flax with its rust (_Lecythea Lini_). 〃 166. Pustule of the same × slightly. 〃 167. Spores of Flax rust (_Lecythea Lini_) × 320. 〃 168. Leaf of Flukewort with its rust (_Trichobasis hydrocotyles_). 〃 169. Spores of _Trichobasis hydrocotyles_ × 320. 〃 170. Portion of leaf of Sedge with its rust (_Trichobasis caricina_). 〃 171. Spores of Sedge rust (_Trichobasis caricina_) × 320. 〃 172. Whorl of leaves of Hedge Bedstraw with Bedstraw brand (_Puccinia Galii_). 〃 173. Spores of Bedstraw brand (_Puccinia Galii_) × 320. 〃 174. Leaf of Tutsan with St. John’s-wort rust (_Uredo hypericorum_).