380 BULLETIN "No. 189 [June, 



On Agar XII. Growth rapid. Mycelium somewhat tufted and dense. Three 

 distinct zones present. 



On Green-Bean Agar. Growth good. Mycelium flat and compact. Several 

 zones present. 



' * BEGONIA ' ' 



On Corn-Meal Agar. Growth fair. Mycelium rather compact and white. No 

 zonation. 



On Green-Bean Agar. Growth fair. Mycelium white, tufted, and compact. 

 Zonation indistinct. 



On Potato Agar. Growth fair. Mycelium compact, dense, and while; me- 

 dium turning dark. Zonation. 



On Agar XII. Growth scant. Mycelium white, fine, and loose. No zonation. 



' ' CARNATION E. K. " 



On Corn-Meal Agar. Growth good. Mycelium white, making a rather dense 

 growth for corn-meal agar. Zonation indistinct. 



On Green-Bean Agar. Growth good. Like strain "Carnation R. II." 



On Oat Agar Growth good. Mycelium white, loose, edge tufted. Zonation. 



On Potaio Agar. Growth poor. Mycelium loo^e and scattering, medium turn- 

 ing darker. Zonation indistinct. 



On Agar XII. Growth poor. Mycelium white, loose, and scattered; edge 

 irregular. Zonation indistinct. 



" CARNATION R. H." 



On Corn-Meal Agar. Growth fair. Mycelium white, fine, and in loose strands; 

 rather dense at center. No zonation. 



On Green-Bean Agar. Growth good. Mycelium dark at center, loose, and 

 tufted; edge irregular. Zonation very characteristic of the strains isolated from 

 diseased carnation plants. 



On Potato Agar. Growth poor. Mycelium fine and scattered; edge irregular. 

 Mycelium causing a characteristic browning of the medium. Zonation indistinct. 



On Agar XII. Growth poor. Mycelium white, fine, loose, and scattered. No 

 zonation. 



"CARNATION R. 8." 



On Corn-Meal Agar. Growth fair. Mycelium white, fine, but rather dense at 

 center; edge regular. Zonation. 



On Green-Bean Agar. Growth good. Mycelium loose, white, and tufted; edge 

 regular. Later, mycelium turned brown. Zonation somewhat indistinct. 



On Potato Agar. Growth poor and scant. Mycelium producing a distinct 

 browning of the agar. Zones indistinct. 



On Agar XII. Growth poor. Mycelium white, scant, loose, and flat. Zonation. 



* ' CARNATION R. F. " 



On Corn-Meal Agar. Growth good. Mycelium white, loose, and somewhat 

 tufted. No zonatiou. 



On Green-Bean Agar. Growth fair. Mycelium white, compact, and tufted. 

 Zonation somewhat indistinct. 



