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232 MICROSCOPIC FUNGI. 



Plate fi?. 



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

 „ 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 liighly. 

 „ 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 {JJstUcKjo recepfacitlon'm). 



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

 enlarged. 



94. Spores of Goatsbeard smut {Ustilago receptacidorum) 

 x460. 



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



96. Beaksedge {lilnjncospora alba) with its smut {Ustilago 

 Montagnei). 



97. Spores of Ustilago Montagnei x 460. 



98. Ear of Barley infected witli smut {Ustilago segetinn).' 



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



100. Grass with its smut {Ustilago hypodytes). 



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



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

 lago antheraruiii) . 



103. Anther distorted by smut {Ustilago antherarum). 



104. Spores of Anther smut {Ustilago anther a nnii) x 460. 

 „ 105. Portion of leaf of water grass with Elongated smut 



{Ustilago longissinia). 

 „ 106, Pustule of same, enlarged. 



107. Spores of Elongated smut {Ustilago longissin/a) x very 

 highly. 



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

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



lorinii). 

 „ 110. Single fruit covered with tlie smut. 



111. Spores of Sedge smut {Ustilago urceoloriaii) x 460. 



112. Flower of Polygonum persicaria distorted by Utricle 

 smut {Ustilago v.triculosa) . 



113. Section of the same {Tidasne). 



114. Inflorescence of Poh/gomim hydropiiper with Utricle 

 smut {Ustilago ntricidosa). 



115. Section of infected flower of Polygonum hydropiper. 



116. Spores of Utricle smut {Ustilago tdriculosa) 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. Grasb ^stem with Banded smut {Ustilago grammica)^ 



