BORAGINACEAE 521 



1. Heliotropium [Tourn.] L. 



i. H. europaeum L. In waste places: N. Y. and Pa. to Fla. 

 Adventive from Europe. 



Rare or occasional as a weed, particularly near New York and 

 Philadelphia. 



H. indicum L. and H. peruvianum Don. have been collected as waifs near New York; 

 they are hardly persistent. H. curassavicum L. has also been found as a waif in some 

 parts of the range. 



2. Cynoglossum [Tourn.] L. 



Stem leafy to the top; flowers reddish, purple, or white. I. C. officinale. 

 Stem leafless above; flowers blue. 



Flowers about 10 mm. broad; nutlets about 8 mm. long. 2. C. virginianum. 



Flowers about 7 mm. broad; nutlets about 5 mm. long. 3. C. boreale. 



i. C. officinale L. In fields and waste places: Que. and Ont. to 

 Minn., Man., N. Car. and Kan. Naturalized from Europe. 

 Not uncommon as a weed in most parts of our range, often locally 

 wanting. 



2. C. virginianum L. In woods: Conn, to Fla., La., Mo. and Kan. 



Conn. Reported from the southwestern part of the state. 

 N. Y. Reported from but doubtfully on L. I. 

 N. J. Bergen, Union, Somerset and Hunterdon counties. 

 Pa. Bucks, Delaware and Chester counties. 



Tertiary, o: Cretaceous, o: Older Formations, increasing west- 

 ward. 117-220 days. Sea level-3,900 ft. 



3. C. boreale Fernald. Woods and banks: Que. and Ont. to 



Conn, and Minn. 



Conn. Rare, in rocky woods. 



N. Y. Catskill Mountains. 



3. Lappula [Rivin.] Moench. 



Racemes bracted; fruiting pedicels not reflexed. I. L. Lappula. 



Racemes bracted only at the base; fruiting pedicels deflexed. 2. L. virginiana. 



1. L. Lappula (L.) Karst. In waste places: N. S. to B. Col., 



N. J. and Kan. Naturalized from Europe. 

 Occasional as a weed, often wanting locally. 



2. L. virginiana (L.) Greene. In dry woods and thickets: N. B. 



to Ont. and Minn., Ala., La. and Kan. 

 Conn. Throughout the state. 



