}J 



ii 



33 



226 MICEOSCOPIC FUNGI. 



Plf.te fi^. 

 Y. 87. Spores of rostid smut in germination x highly. 



88. Sporidia of the first order borne on the germinating 

 tubes of the fcetid smut {Tilletia caries) x highly. 



89. Sporidia of the first order, showing their transverse 

 connection, x highly. 



90. Sporidia of the first order, producing sporidia of the 

 second order, x highly. 



5, 91. Sporidium of the second order in active germination. 

 „ 92. Deformed flower-head of Goatsbeard infested with 



smut (JJstilago receptaculorMm). 

 y, 93. Ploret removed, sprinkled with spores of the smut, 



enlarged. 

 „ 94. Spores of Goatsbeard smut (Usfilacio receptaculorwri) 



x460. 



95. The same in active germination x 460 {Tidasne). 



96. Beak sedge {lihyncospora alba) with its smut (Ustilago 

 Montagnei). 



97. Spores of Ustilago Montagnei x 460. 



98. Ear of Barley infected with smut {Ustilago segetum). 



99. Spores of Corn-smut {Ustilago segetum) x 460. 



100. Grass with its smut {Ustilago hypodytes). 



101. Spores of Grass-smut {Ustilago hypodytes). 

 103. Flowers of Bladder-campion with anther-smut {Usti- 

 lago anther arwTi). 



103. Anther distorted by smut {Ustilago anther aruni), 



104. Spores of Anther smut (JJstilago antherarum) x 460. 



105. Portion of leaf of water grass with Elongated smut 

 ( Ustilago loiigissima) . 



106. Pustule of same, enlarged. 



107. Spores of Elongated smut (Ustilago longissima) x very 

 highly. 



„ 108. Spores of Maize smut (Ustilago maydis) x 460. 

 YI. 109. Sedge {Carex recurva) with Sedge smut {Ustilago nr ceo - 



lorum). 

 „ 110. Single fruit covered with the smut. 



111. Spores of Sedge smut ( Ustilago urceolorum) x 460. 



112. Elower of Tolygonum persicaria distorted by Utricle 

 s m ut ( 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 (JJstilago utriculosa) x 460. 



117. Leaf of Cocksfoot grass with smut (JJstilago Salveii). 



118. Portion of leaf, showing pustAiles, x slightly. 



119. Spores of Cocksfoot smut {Ustilago Salveii) x 320. 



120. Grasb stem with Banded smut {Ustilago grammica). 



33 

 33 



33 

 S3 



33 



33 

 33 

 53 



3J 

 33 



5 J 

 33 



33 

 93 



35 

 33 

 J? 

 3> 

 33 

 1> 



