LOBELIACKE. 83 



2. L. integrifolia, L. Stein 3-6 feet high ; leaves all undi- 

 vided, entire or slightly toothed. Flowers pale yellow, cream- 

 colour, or purple. Dry soil. 



3. L. hirsu'ta, Muhl. Leaves runcinate, the midrib beneath 

 often sparingly bristly-hairy. Flowers yellowish-purple, rarely 

 white. Dry soil. 



39. MULGE'DIUM, Cass. FALSE OB BLUE LETTUCE. 

 M. leucophaj'um, DC. (Lactuca leucophcea, Cjray, in Ma- 

 coun's Catalogue.) Stem tall and very leafy. Heads in a dense 

 compound panicle. Borders of damp woods and along fences. 



40. SON/CHITS, L. SOW-THISTLE. 



1. S. olera'ceus, L. (COMMON SOW-THISTLE.) Stem-leaves 

 runcinate, slightly toothed with soft spiny teeth, clasping ; the 

 auricles acute. Manured soil about dwellings. 



2. S. asper, Vill. (SPINY-LEAVED S.) Leaves hardly lobed, 

 fringed with soft spines, clasping ; the auricles rounded. Achenes 

 margined. Same localities as No. 1. 



3. S. arven'sis, L., (FIELD S.) with bright yellow flowers and 

 bristly involucres and peduncles, is found eastward. 



41. TRAGOPO'GON, L. GOAT'S BEARD. SALSIFY. 



T. praten'sis, L. (YELLOW GOAT'S BEARD. ) Spreading west- 

 ward along the railway lines. 



ORDER L. LOBELIA'CE-33. (LOBELIA FAMILY.) 



Herbs, with milky acrid juice, alternate leaves, and loosely 

 racemed flowers. Corolla irregular, 5-lobed, the tube split don-u 

 one side. Stamens 5, syngenesious, and commonly also monadel- 

 phous, free from the corolla. Calyx-tube adherent to the many- 

 seeded ovary. Style 1. The only genus is 



LOBE'L,IA, L. LOBELIA. 



1. L. cardinalis, L. (CARDINAL-FLOWER.) Corolla large, deep 

 red. Stem simple, 2-3 feet high, smooth. Loaves oblong-lanceo- 

 late, slightly toothed. Bracts of the flowers leaf-like. Low 

 grounds. 



