CICHORIACEAE 183 



Flowers red. 1. L. cardinahs. 

 Flowers blue. 



Flowers nearly 1' long. 2. L. syphilitica. 

 Flowers less than 6" long. 



Plant nearly glabrous. 3. L. spicnta leptostachys. 



Plant hairy* 4. L. inflata. 



1. L. cardinalis L. CARDINAL FLOWER. i-5 high, glabrous : 

 leaves oblong-lanceolate, toothed: flowers (V or more long) in dense 

 spike-like racemes. In moist woods near Westport, Leeds, Sheffield, 

 Dodson and Grain Valley. Not common. August-September. 



2. L. syphilitica L. l-3 high, somewhat hairy : leaves ovate-lanceo- 

 late, denticulate : flowers in dense spike-like racemes : calyx tube with 

 large, deflexed auricles in the sinuses. Common in moist places. July- 

 September. 



3. L. spicata leptostachys (A. DC.) Mackenzie & Bush, n. comb. 

 l-3 high, puberulent : stems leafy below, simple, prolonged into a long 

 spike-like raceme : leaves oblanceolate, denticulate, obtuse : calyx of some 

 of the flowers at least with deflexed auricles in the sinuses. Not uncom- 

 mon locally in dry soil throughout. June- July. (L. leptosiachys A. DC.) 



4. L. inflata L. INDIAN TOBACCO. l-2 high, much branched : 

 leaves oblong-ovate, repand -dentate : flowers in short racemes : pods 

 inflated. Common in dry woods. June-October. 



FAMILY 123. CICHORIACEAE Reichenb. 



Herbs with milky juice, alternate leaves and flowers in involuorate 

 heads. Flowers all alike and perfect. Calyx superior, composed of bris- 

 tles or scales or wanting. Corolla tubular below and with a strap shaped, 

 5-toothed limb. Anthers five, connate around the style into a tube. 

 Ovary inferior. 1-celled, containing a single erect ovule. Style 2-cleft. 

 Fruit an achene. Receptacle naked in all ours. 



Pappus of blunt scales. 1. CICHORIUM. 



Pappus of plumose bristles. 2. TRAGOPOGON. 



Pappus of non plumose bristles. 

 Heads scapose. 



Leaves pinnatifid. 3. TARAXACUM. 



Leaves not pinnatifid. 6. NOTHOCALAIS. 



Heads not seapose. 

 Achenes flattened. 



Flowers blue. 5. LACTUCA. 



Flowers yellow ; achenes not beaked. 4. SONCHUS. 



Flowers yellow ; achenes beaked. 5. LACTUCA. 



Achenes columnar or terete. 



Achenes long-beaked. 7. SITILIAS. 



Achenes beakless. 



Plants leafless above. 8. HIERACIUM. 



Plants leafy to the flowers. 9. NABALUS. 



1. CICHORIUM L. 



Involucre double, the outer spreading, the inner erect. Achenes striate, 

 not beaked. 



