Class XVIL— SYXGENESIA. 



Anthers 5, united into a tube. Flowers com- 

 pound. 



Order I.— POLYGAMIA JEQUALIS. 



(Flowers all hermaphrodite, fertile.) 



f Florets all ligtdate. 



5^5, CICHORIUM. L. (Endive. Succory.) 

 Calix caiiciilate. Receptacle subpalcaceous. 

 Fappus many-leaved, paleaceous. 



Flowers blue or white, axillary, 1 to 6-gloinerate, ses- 

 sile, one of tbem sometimes long- pedunculate. 



Species- \. C Intyhus. Naturalized. The parched root 

 Jias been very generally used in Europe as a succedaneum 

 for Coffee. The roots of Le onto don Taraxacum answer a 

 similar purpose, and perhaps many more of the Cicho- 



HACEA. 



A small genus of 5 species indigenous to Europe, and 

 C Endivia, (Endive) to India. 



526. APARGIA. JVilld. 



Calix imbricated. Receptacle naked. Fappus 

 plumose, sessile. 



Stemless or rarely caulescent; scapes and stems 1 or 

 mere flowered; leaves mostly runcinate or pinnatifid. 

 Species of Leant odoJi. L. 



Species. 1. L. autvmnalis. Naturalized in the northern 

 states. 



Almost exclusively an European genus, and many of the 

 species alpine. 



527. LEONTODON. L, (Dandelion.) 



Calix double. Receptacle naked. Pappus stU 

 pitatc, plumose. 



