Hedgcock, Hunt, Hahn: Coleosporium 191 



P. canadensis; District of Columbia.* 5 



P. caribaia; District of Columbia* and Florida. 



P. contorta; District of Columbia.* 



P. coulteri; District of Columbia.* 



P. echmata; Alabama, District of 'Columbia* and Georgia. 

 P. mayriana; District of Columbia.* 



P. palustris; Alabama, District of Columbia,* Florida, Missis- 

 sippi, North Carolina and South Carolina. 

 P. radiata; District of Columbia.* 

 P. rigida; District of Columbia and North Carolina. 

 P. serotina; Florida. 



P. taeda; Alabama, District of Columbia,* Florida, Georgia, 

 Mississippi, North Carolina, South Carolina and Texas! 

 II and III. On Elephantopits : 



E. carolinianus; Alabama, Arkansas, District of Columbia,* 

 Florida, Georgia, Louisiana, Mississippi, North Carolina, South 

 Carolina, Virginia, and Texas. 



E. elatus; District of Columbia,* Georgia and Mississippi. 



E. nudatus; Florida. 



E. tomentosus ; District of Columbia,* Florida, Mississippi, 

 North Carolina, South Carolina and Tennessee. 



Coleosporium carneum 



Peridermium carneum (Bosc) Seym. & Earle, the aecial form 

 of Coleosporium carneum (Bosc) Jackson (9) was first de- 

 scribed and illustrated by Bosc (5) in 181 1 from a specimen on 

 Pinus palustris from South Carolina. The- description is meager 

 and might apply to most any species of Peridermium on the 

 needles of pine from South Carolina. The illustration, however, 

 which Bosc gives is that of the form of Peridermium carneum 

 found to infect species of Vernonia in our inoculations. Arthur 

 in 1910 (2) first proved that Peridermium carneum belongs to 

 Coleosporium carneum on species of Vernonia. 



In order to set apart the aecial form of Coleosporium carneum 

 from that of Coleosporium elephantopodis, the following descrip- 



5 Hosts or collections obtained from artificial inoculations in the green- 

 house at Washington, D. C, are indicated here and later by an asterisk (*). 



