203 
_ 105. Dry-rot of sweet potatoes caused by Diaporthe Batatis Harter and 
Field (=Phoma Batatae Ellis and Halsted). 
106. Soft rot of sweet potatoes and leek of Irish potatoes caused by 
Rhizopus nigricans Ehrenberg. 
107. Stem-rot of sweet potatoes caused by Fusarium Batatatis Wollen- 
weber or F. hyperoxysporium Wollenweber. ; 
108. Scurf of sweet potatoes caused by Monilochaetes infuscans Halsted. 
109. Fruit-rot of tomato caused by Phoma destructiva Plowright. — 
110. End-rot of tomatoes; cause variously assigned. 
111. Leaf-spot or blight of tomatoes caused by Septoria Lycopersici 
Spegazzini. 
112. Leaf-mold of tomatoes caused by Cladosporium fuluum Cooke. 
FOREST TREES 
113. Twig-blight of conifers caused by Pestalozzia funerea Desmazieres. 
114. Twig-bligh of conifers caused by Herpotrichia migra Hartig. 
(=Neopeckia Coultert (Peck) Saccardo). 
é 7 Walnut blight caused by Bacterium Juglandis (Pierce) E. F. 
maith. 
116. Fir blight caused by Botrytis Douglasii Tubeuf. 
117. Leaf-blight of fir and spruce caused by Trichosphaeria parasitica 
Hartig (=Acanthostigma parasitica (Hartig) Saccardo). 
118. Tar-spot of maple leaves caused by Rhytisma acerinum Fries and 
R. punctatum Fries. 
119. Twig-blight of pine caused by Cenangium Abietis Rehm. 
120. Leaf-spots of walnut and poplar caused respectively by Gnomontia 
leptostyla (Fries) Cesati and de Notaris (=Marssonia Juglandis (Lebert) 
Saccardo) and Trochilia Populorum Desmazieres. 
121. Powdery mildew of chestnut caused by Phyllactinia Corylea 
Karsten. 
122. Powdery mildew of oaks in Europe caused by Microsphaera 
Almi (Fries) var. Quercina Neger. i ; 
123. Canker of maple and other trees caused by Neciria cinnabarina 
Fries (= Tubercularia vulgaris Fries). 
124. Canker of spruce caused by Nectria cucurbitula Fries. __ 
125. Canker of spruce and fir caused by Pestalozzia Hartigit Tubeut. 
126. Root-rot of conifers caused by Rhiztna undulata Fries (= Rhizina 
inflata Quélet). 
127. Root-rots of trees caused by Rosellinia sps. : 
128. Root-rot of forest-trees caused by Armillaria mellea (Fries) 
-Quélet. ; 
129. Red-rot of conifers caused by Fomes Pinicola (Fries) Cooke. 
130. Decay of oak, beach and other trees caused by Bulgaria poly- 
morpha Wettstein (=B. inquinans Fries). f 
131. Heart-rot of forest-trees caused by Polyporus sulphureus Fries. 
132. Heart- and sap-rot of trees caused by Polystictus versicolor Fries. 
133. Compare and contrast symptoms produced by Polystactus verst- 
color Fries, Polystictus pergamenus Fries, Merulius lacrymans Fries and 
Fomes Pinicola (Fries) Cooke. : 
134. Compare and contrast symptoms produced by Polyporus squamo- 
sus Fries, Polyporus sulphureus Fries, Polyporus Betulinus Fries, Hydnum 
septentrionale Fries. 
