794 



BORAGINACEAE 



Onosmodium 



50 



Map 1716 



Onosmodium hispidissimum Mack. 



Map 1717 



Echium vulgare L. 



sides and railroads, on the crests and slopes of open, wooded ridges in the 

 area of the sandstone outcrops, and rarely in moist prairie habitats. Prob- 

 ably absent from many of the counties of the area of the Tipton Till Plain. 

 S. Pa. to Sask., southw. to Ala., and Tex. 



5. Lithospermum croceum Fern. (Rhodora 37: 329. 1935.) (Litho- 

 spermum Gmelini of Gray, Man., ed. 7 and Lithospermum carolinense of 

 Britton and Brown, Illus. Flora, ed. 2.) Map 1715. Infrequent through- 

 out the sandy area of the lake region. There are reports from southern 

 Indiana but this and the preceding species have always been confused and 

 I believe that most of the southern reports should be referred to Litho- 

 spermum canescens. Usually in very sandy soil in open black oak woods, 

 along roadsides and railroads, and in sandy prairie habitats. 



N. Y. to Man., southw. to Fla., Tex., and Mex. 



7113. ONOSMODIUM Michx. 



1. Onosmodium hispidissimum Mack. False Gromwell. Map 1716. 

 Until 1905 our manuals did not properly distinguish our species of this 

 genus. Previous to 1905 three species were reported from six counties in 

 Indiana and no doubt all of these should be referred to this species. For 

 a discussion of this subject see excluded species. All the specimens that I 

 have seen were collected in dry, gravelly soil in open woods or along road- 

 sides. Rare, and only a few specimens at a location. 



Cent. N. Y. to Minn., southw. to Ga. and Tex. 



7118. ECHIUM [Tourn.] L. 



1. Echium vulgare L. Blueweed. Blue Thistle. Map 1717. This 

 species has been reported from five counties besides those shown on the 

 map. It prefers sandy soil and is found mostly in fallow fields, along road- 

 sides and railroads, and sometimes in open woods and woods pastures. In 

 1920 I noted a five-acre field of it in Lagrange County where it was so 

 abundant that on June 21, when it was in flower, the whole field presented 



