Prenanthes 



COMPOSITAE 



1015 



Jan. 



Feb. 



Mar. 



Apr. 



May 



June 



July 



Aug. 



Sept. 



Oct. 



Nov. 



Dec. 



Miles 



50 



Map 2232 



Prenanthes trifoliolata ICassJ Fera 



50 



Map 2233 



Prenanthes alba L. 



50 



Map 2234 



Prenanthes racemosa Michx. 



and cited Indiana within its range. In none of our specimens is the pappus 

 as dark as Cinnamon-Brown of Ridgway's Standard. 

 Newf. to Man., southw. to Ga. and Tenn. 



• 



2. Prenanthes trifoliolata (Cass.) Fern. Map 2232. My only specimen is 

 from a woods in Porter County about 5 miles southwest of Michigan City. 

 Peattie reported it from La Porte County. Clark reported it from Marshall 

 County, but, since he did not report Prenanthes altissima, this report should 

 no doubt be referred to the latter. It has been reported also from White 

 County. Doubtless it is rare in Indiana. 



Newf. and Que. to N. Y. and Mo., southw. to N. C. and in the mts. to 

 Tenn. 



3. Prenanthes alba L. Map 2233. This species has its mass distribu- 

 tion in the lake area, becoming local southward. It is rather infrequent 

 in the lake area and is found mostly in moist, sandy soil in woodland and 

 sometimes in marshes. This plant has a common name assigned to it 

 which rightfully belongs to another plant. Since the other plant is a 

 medicinal plant it claims the common name, and, since it is confusing to 

 have two plants with the same common name, I do not mention it here. 



S. Maine to Sask., southw. to Ga., Tenn., and 111. 



4. Prenanthes racemosa Michx. Map 2234. All of my specimens of this 

 species are from the northern part of the state where it is infrequent and 

 found in marshes and moist prairie habitats. 



N. B., Que. to Man., southw, to N. J., Mo., and Colo. 



5. Prenanthes aspera Michx. Map 2235. Very local in the area shown 

 on the map. It has been reported from Clark, Jefferson, and Steuben 

 Counties by early authors. My specimens were found along roadsides in 

 dry, sandy soil in prairie habitats. Late in 1938 Kriebel and I found it in 

 hard, white clay soil in Spencer County. 



Ohio to S. Dak., southw. to Tenn. and La. 



