PLATE VIII. 
1.— Tubwip Mould. 
Peronoopora parasitica. 
2. — Onion Mould. 
Peronospora destructor. 
5.— Pea Mould. 
Peronospora vicice. 
MOULDS. 
6.— Sandwobt Mould. 
Peronospora arenuriee. 
