Parasitic and Saprophytic Fungi in Orchards. 167 



GROWTH FROM SPORE 

 NAME. CAUSE ON GLUCOSE AGAR. 



1. Alternaria, 



rot and leaf spot Alternaria sp Grows luxuriantly. 



2. Bitter-rot Glomerella rufomaculans 



(von S. and Sp.) Grows luxuriantly. 



3. Bitter-spot and 



Pink-mold Cephalothecium roseum Cda.. Grows luxuriantly. 



4. Black-rot Sphaeropsis malorum Pk . . . .Grows luxuriantly. 



5. Brown-rot Sclerotinia fructigena (Pers.) 



Schrt Grows luxuriantly. 



6. Fire-blight Bacterium amylovorum 



(Burr.) Chest Grows luxuriantly. 



7. Fly-speck fungus. .. Leptothyrium pomi (Mont. 



and Fr.) Sacc Not known. 



8. Green mold Penicillium expansum Lk. . .Grows luxuriantly. 



9. Illinois apple-tree 



canker Nummularia discreta(Schw.) 



Tul Grows luxuriantly. 



10. Leaf -spot Phyllosticta sp Grows luxuriantly. 



11. Powdery-mildew. . . Podosphaera leucotricha (EU. 



and Ev.) Salm Does not grow. 



12. Rust Gymnosporangium macropus 



Lk Does not grow. 



13. Scab Venturia inaequalis (Cke.) 



Aderh Does not grow. 



14. Sooty-blotch Phyllachora pomigena(Schw.) 



Sacc Not known. 



15. Wound fungi Various Basidiomycetes Do not grow. 



LIST OF FUNGI OBTAINED. 



It was not expected that the fungi which might be prevalent 

 would correspond entirely with those which were obtained. 

 Those which were actually obtained in the exposures are as 

 follows : 



NAME OP FUNGUS. NO. OF EXPOSURES MADE. NO. TIMES OBTAINED. 



Alternaria No. 1 27 27 



Alternaria No. 2 27 10 



Cladosporium No. 1 27 27 



Cladosporium No. 2 27 5 



Helminthosporum sp 27 4 



Penicillium expansium Lk 27 9 



Oospora sp 27 9 



Phyllosticta limitata Pk 27 24 



Nummularia discreta(Schw.) Tul.. . . 27 2 



Sporotrichum sp 27 1 



Acremoniella cucurbitae, Schultz 



and Sacc 27 1 



