JJ 



EXPLANATION OF PLATES. 249 



Plate fle . 



VI. 121. Portion of same, showing arrangement of the pustules, 



x slightly. 

 „ 122. Spores of banded smut (Ustilago grammicd) x 320. 

 „ 123. Inflorescence of Scabious with Floret smut {Ustilago 



flosculorum). , 



„ 124. Floret occupied by the smut. 

 „ 125. Spores of Eloret smut (Ustilago flosculorum) x 320. 

 „ 126. Sedge {Carex riparia) attacked by Olive smut (Ustilago 



olivacea). 



127. Spores of Olive smut (Ustilago olivacea) x 460. 



128. Reed stem with smut (Ustilago typhoides). 



„ 129. Spores of Reed smut ( Ustilago typhoides) x 320. 



„ 130. Leaf of Periwinkle with its rust (Trichobasis vinca). 



„ 131. Spores of Periwinkle rust (Trichobasis vincce) x 320. 



„ 132. Spores of Periwinkle brand (Puccinia vinca) x 320. 



VII. 133. Leaf of Mercury with its rust (Uredo confluens). 

 „ 134. Spores of Mercury rust (Uredo confluens) x 320. 

 „ 135. Leaf of Enchanter's Nightshade with its rust. 



„ 136. Spores of Nightshade rust (Uredo Circate) x 320. 

 „ 137. Leaf of Sorrel with Twin-faced rust (Uredo bifrons). 

 „ 138. Pustule of Twin-faced rust seated on a coloured spot 



x slightly. 

 „ 139. Spores of the same rust x 320. 



„ 140. Leaf of Wheat with Corn rust (Trichobasis rubigo-vera) . 

 „ 141. Pustules of the same rust x slightly. 

 „ 142. Spores of Round corn rust x 320. 

 „ 143. Tuft of spores of Elongated corn rust (Trichobasis 



linearis) magnified. 

 „ 144. Spores of Elongated corn rust (Trichobasis linearis) 



x320. 

 „ 145. Leaf of Groundsel with its rust (Trichobasis Senecionis). 

 „ 146. Spores of Groundsel rust (Trichobasis Senecionis) x 320. 



147. Wild Rose with Golden rust (Uromyces Ulmariae). 



148. Spores of Golden rust x 320. 



149. Leaf of Vetch with Long-stemmed rust (Uromyces 

 appendiculata). 



150. Spores of the same x 460. 



151. Leaf of Common thistle with Sweet-smelling rust {Tri- 

 chobasis suaveolens). 



152. Spores of Sweet rust (Trichobasis suaveolens) x 320. 



153. Spermogone of Sweet rust, from common thistle, 

 x highly (Be Bary) . 



154. Clover leaf with Short-stemmed rust (Uromyces apicu- 

 losa). 



155. Spores of Short-stemmed rust x 320. 



156. Leaf of Pilewort with its rust (Uromyces Ficaritz). 



157. Spores of Pilewort *ust (Uromyces Ficarice) x 320. 



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