〃 103. Anther distorted by smut (_Ustilago antherarum_). 〃 104. Spores of Anther smut (_Ustilago antherarum_) × 460. 〃 105. Portion of leaf of water grass with Elongated smut (_Ustilago longissima_). 〃 106. Pustule of same, enlarged. 〃 107. Spores of Elongated smut (_Ustilago longissima_) × very highly. 〃 108. Spores of Maize smut (_Ustilago maydis_) × 460. VI. 109. Sedge (_Carex recurva_) with Sedge smut (_Ustilago urceolorum_). 〃 110. Single fruit covered with the smut. 〃 111. Spores of Sedge smut (_Ustilago urceolorum_) × 460. 〃 112. Flower of _Polygonum persicaria_ distorted by Utricle smut (_Ustilago utriculosa_). 〃 113. Section of the same (_Tulasne_). 〃 114. Inflorescence of _Polygonum hydropiper_ with Utricle smut (_Ustilago utriculosa_). 〃 115. Section of infected flower of _Polygonum hydropiper_. 〃 116. Spores of Utricle smut (_Ustilago utriculosa_) × 460. 〃 117. Leaf of Cocksfoot, grass with smut (_Ustilago Salveii_). 〃 118. Portion of leaf, showing pustules, × slightly. 〃 119. Spores of Cocksfoot smut (_Ustilago Salveii_) × 320. 〃 120. Grass stem with Banded smut (_Ustilago grammica_). 〃 121. Portion of same, showing arrangement of the pustules, × slightly. 〃 122. Spores of banded smut (_Ustilago grammica_) × 320. 〃 123. Inflorescence of Scabious with Floret smut (_Ustilago flosculorum_). 〃 124. Floret occupied by the smut. 〃 125. Spores of Floret smut (_Ustilago flosculorum_) × 320. 〃 126. Sedge (_Carex riparia_) attacked by Olive smut (_Ustilago olivacea_). 〃 127. Spores of Olive smut (_Ustilago olivacea_) × 460. 〃 128. Reed stem with smut (_Ustilago typhoides_). 〃 129. Spores of Reed smut (_Ustilago typhoides_) × 320. 〃 130. Leaf of Periwinkle with its rust (_Trichobasis vincæ_). 〃 131. Spores of Periwinkle rust (_Trichobasis vincæ_) × 320. 〃 132. Spores of Periwinkle brand (_Puccinia vincæ_) × 320. VII. 133. Leaf of Mercury with its rust (_Uredo confluens_). 〃 134. Spores of Mercury rust (_Uredo confluens_) × 320. 〃 135. Leaf of Enchanter’s Nightshade with its rust. 〃 136. Spores of Nightshade rust (_Uredo Circææ_) × 320. 〃 137. Leaf of Sorrel with Twin-faced rust (_Uredo bifrons_). 〃 138. Pustule of Twin-faced rust seated on a coloured spot × slightly.