Class XVII.— SYKGENESIA. 



Anthers 5, united into a tube. Flowers com- 

 pound. 



Order I — POLYGAMIA ^QUALIS. 



(Flowers all hermaphrodite, fertile.) 



f Florets gU ligulate. 



523, CICHORIUM. L. (Endive. Succory.) 

 Callx callculate. Jleceptade subpaleaceous. 

 Fappus many-leaved, paleaceous. 



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

 sile, one of them sometimes long- pedunculate. 



Species. 1. C Inii/b:is- Naturalized. The parched |pot 

 ?ias been very generally used in Europe as a succedaneum 

 for Coffee. The roots o'i Leant o don Taraxacum answer a 

 similar purpose, and perhaps many more of the Cicho-' 



HACE^. 



A small g-enus of 5 species indigenous to Europe, and 

 C Endivia, (Endive) to India. 



526. APARGIA. WiUd. 



Calix imbricated. Receptacle naked. Fappus 

 plumose, sessile. 



Stemless or rarely caulescent; scapes and stems 1 or 

 j-nerc flowered; leaves mostly runcinate or pinnatifid. 

 Species of l.eontodon. L. 



Species. 1. L. mtUnnnalis. Naturallzedin the northern 

 states. 



Almost exclusively an European genus, and many of the 

 species alpine. 



5x27. LEONTODON. X. (Dandelion.) 



Calix double. Jieccptacle naked. Pappus sti 

 pitatc, plumose. 



