BLUE FLOWERS 157 



18. Same as 17, but not with 3 petals. 



BLUE BELLS (Mertensia Virginica). Borage family. 

 Max. ht. 2 ft.; flowers, blue, in loose clusters at 

 end of stem; calyx 5-parted; corolla (i in.) nar- 

 rowly bell-shaped; leaves obtusely pointed, those 

 at root with stalks. Banks. Spring. 



19. Plant upright, leaves alternate, flowers not composite, 

 flowers in spike. 



VIPER'S BUGLOSS. BLUEWEED (Echium vulgare). Bor- 

 age family. 



Max. ht. 2 ft.; stem stiffly hairy; flowers showy 

 (| in.); corolla with funnel-formed tube, and 

 unequal q-lobed border; stamens (5) red, protrud- 

 ing; stem-leaves pointed, without teeth, lance- 

 shaped, without stalks. Roadsides and waste 

 places. Early summer. 



20. Same as 19, but flowers in raceme. 



GREAT LOBELIA (Lobelia syphilitica). Lobelia family. 

 Max. ht. 3 ft.; somewhat hairy; flowers blue, 

 nearly i in. long, with stalks; calyx 5-pointed; 

 corolla (J in.) 2-lipped, lips 2-cleft and 3-cleft; 

 leaves often pointed at both ends, irregularly 

 toothed. Low grounds. Summer. 



INDIAN TOBACCO (Lobelia inflatd). Lobelia family. 



Max. ht. 2 ft.; flowers similar to above but much 

 smaller; leaves egg-shaped to oblong, sparingly 

 toothed; pod inflated. 



PALE SPIKED LOBELIA (Lobelia s pic aid) . Lobelia family. 

 Max. ht. 4 ft.; stem slender, leafy; flowers similar 

 to above, pod not inflated. 



BLUE LINARIA. BLUE TOADFLAX (Linaria Canadensis). 



Figwort family. 



Ht. several in. to 2 ft.; slender; flowers very small, 

 racemed on stem, light blue ; calyx 5-pointed; corolla 

 2-lipped with spur; leaves linear, in tufts along stem, 

 not toothed. Sandv soil. Common. Summer. 



