EXPLANAT]ON OF PLATES. 227 



Plate fier. 



Yl. 121. Portion of same, sliowiiig arrangement of tlie pustules, 

 X slightly. 

 122. Spores of banded smut (JJstilago grammicd) x 320. 

 128. Inflorescence of Scabious with floret smut ( Udilago 

 flosculorum) . 



124. rioret occupied by the smut. 



125. Spores of Tloret smut (JJstilago fiosculoruTn) x 320. 



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

 olivacea). 



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



128. Reed stem wdth smut {Ustilago typhoides), 



129. ^"goYQ^ oi'B.^tdi ^m\xt {Ustilago typhoides) y. 320. 



130. Leaf of Periwinkle with its rust {Trichobasis vincce). 



131. Spores of Periwinkle rust {Trichobasis vincce) x 320. 



132. Spores of Periwinkle brand {Fticcinia vinca) x 320. 

 YII. 133. Leaf of Mercury with its rust {Uredo conjlueyis) . 



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

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

 „ 136. Spores of Nightshade rust {Uredo Circcece) 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 ntbigo-vera) . 



141. Pustules of the same rust x slightly. 



142. Spores of Hound corn rust x 320. 



143. Tuft of spores of Elongated corn rust {Trichobasis 

 linearis) magnified. 



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

 X 320. 



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 Ulmarim). 



148. Spores of Golden rust x 320. 



149. Leaf of Yetch with Long-stemmed rust {Uromyces 

 appendictdata) , 



150. Spores of the same x 460. 



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

 chobasis siiaveolens) . 



„ 152. Spores of Sweet rust {Trichobasis siiaveolens) x 320. 



153. Spermogone of Sweet rust, from common- thistle, 

 X highly {De 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 Ficaria). 



157. Spores of Pilewort rust {Uromyces Ficarice) x 320. 



q2 



53 





a 



a 



J5 

 55 

 J? 



55 



55 

 55 



55 

 35 

 33 

 55 

 33 



JJ 



J3 



a 



33 



33 

 33 



33 



33 



33 

 33 



