168 PLANT DISEASES 



Vaccinium, Andromeda, Ledum, Arctostaphylos, Cassandra, 

 Saxifraga, Symplocus, Bromus, Arrhenatherum. The treat- 

 ment is in all instances the same as that given under E. 

 rhododendri. 



Fig. 36. Exobasidium rhododendri. i, galls 

 formed by the fungus on leaves of Rhododendron 

 ferrugineum, about nat. size ; 2, basidia bear- 

 ing a variable number of spores, x 350. 



Exobasidium lauri, Geyl., forms club- or horn-shaped 

 outgrowths up to one foot long, growing from the leaves of 

 Laurus nobilis and L. eanariensis in Italy and the Canaries. 



BLISTER BLIGHT' OF TEA PLANT 



(Exobasidiuin vexans, Massee.) 



Dr. Watt, who investigated the pests and blights of the 

 tea plant in Assam under instructions from the Govern- 



