BOTANY OF LA SAL,L,E COUNTY. 99 



P. crepidinea. Stout, 5 to 9 ft., leaves broad- 

 triangular-ovate, strongly toothed, petiolate 

 nodding-. Woods. 



P. aspera. asper 5th Ed. Rough, downy; leaves 

 lanceolate, toothed; 2 to 4 ft. Dry places. 



P. alba, albus of 5th Ed. White lettuce. Smooth, 

 pale G. ; leaves angular, toothed upper oblong 

 entire. Rocky places and woods. 



TROXIMON. P. Leaves long, narrow, acute, rad- 

 ical. 



T. cuspidatum. Scape 1 ft., head large, Y. Ap. 



M. On old fair ground near river. 

 TARAX ACUM. P. Common Dandelion. 



T. offcina le. Dens leonis of 5th EM. 

 LACTUCA. A. Lettuce. Stems leafy, juice milky; 

 heads panicled. 



L. scariola. Stem and midrib of leaves prickly; 

 1 to 5 ft. Everywhere. 



L. Canadensis. Tall, 4 to 9 ft., leaves lobed or 

 not. Flowers Y. Hedges. 



L. integrifolia. Leaves lanceolate, acute, toothed 

 or entire. 



L. Florida na. Leaves lobed or toothed upper often 



clasping, flowers B. 3 to 7 ft. Hedges. 

 SON CHITS. Sow Thistle. Stems leafy, smooth, 

 light G. 



S. olera ceus. Leaves clasping and slightly toothed 

 with soft, spiny teeth; flowers pale Y. 



S. asper. Leaves divided, more spiny. 



Order 54. LOBELIA CEAE. Lobelias. 



juice acrid, milky; corrolla irregular 5 lobed; 

 stamens 5 free from corolla. 



LOBELIA. Corolla split on one side somewhat two- 

 lipped; flowers axillary, stems leafy. 



L. cardinalis. Cardinal Flower. Leaves oblong; 



