248 



illCKOSCOPIC FUNGI. 



J3 



Plate fig. 



V. 87. Spores of Foetid smut in germination x highly. 



„ 88. Sporidia of the first order borne on the germinating 

 tubes of the foetid 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. 



91. Sporidium of the second order in active germination. 



92. Deformed flower-head of Goatsbeard infested with 

 smut {Ustilago receptaculoncm). 



93. Eloret removed, sprinkled with spores of the smut, 

 enlarged. 



94. Spores of Goatsbeard smut {Ustilago receptaculorum) 

 x460. 



95. The same in active germination x 460 {TulasneS. 



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

 Montagnei). 



97. Spores of Ustilago Montagnei x 460. 



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

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



100. Grass with its smut {Ustilago hjpodytes). 



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



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

 lago antheranim). 



103. Anther distorted by smut {Ustilago anther arum). 



104. Spores of Anther smut {Ustilago antherarum) x 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) x very 



highly. 

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



VI. 109. Sedge {Carex recnrva) with Sedge smut {Ustilago urceo- 

 lorv.m). 



110. Single fruit covered with the smut. 



111. Snores of Sedge smut {Ustilago urceolorwm) x 460. 



112. Flower of Polygonum persicaria distorted by Utricle 

 smut {Ustilago utriculosa). 



113. Section of the same (rw/tf^;?^). 



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) x 460. 

 „ 117. Leaf of Cocksfoot grass with smut {Ustilago Salceii). 

 „ 118. Portion of leaf, showing pustules, x slightly. 



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



120. Grass, stem with Banded smut {Ustilago grammica). 



>9 



i) 



53 

 33 

 33 



J3 

 33 



33 



S3 

 J3 



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