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EXPLANATION OF PLATE I. 
CERCOSPORA COMARI, Peck. 
A leaflet spotted by the fungus. 
A tuft of four flocci, two of them bearing spores, x 400. 
Two spores, X 400. 
HADROTRICHUM LINEARE, Peck. 
Upper part of a leaf bearing linear patches of the fungus. 
A tuft of five flocci, two of them bearing spores, x 400. 
Five spores, x 400. 
ENTYLOMA SANICUL&, Peck. 
A leaflet spotted by the fungus. 
Five spores, x 400. 
Four conidia, x 400. 
CYLINDROSPORIUM VERATRINUM, S. & W. 
Upper part of a leaf bearing linear patches of the fungus. 
A tuft of four flocci, two of them bearing spores, x 400. 
Two spores, x 400. 
RAMULARIA OXALIDIS, Far. 
A leaflet spotted by the fungus. 
A tuft of four flocci, two of them bearing spores, x 4oo. 
Five spores, x 400. 
RAMULARIA DIERVILLA, Peck. 
Upper part of a leaf spotted by the fungus. 
A tuft of four flocci, two of them bearing spores, x 400. 
Six spores, two of them united end to end, x 4oo. 
RAMULARIA PRINI, Peck. 
A leaf spotted by the fungus. 
A tuft of four flocci, two of them bearing spores, x 400. 
Five spores, x 400. 
