LINNJEAN CLASSES, 305 



15. Tetradynamia, Stamens 4 long and 2 short 

 A very natural Class, comprehending all the Cruciform 

 flowers, as the Wall-flower, Stock, Radish, Mustard, 

 &c. Cleome only does not properly belong to the 

 rest. 



16. MoNADELPHiA. Stamcns united by their fila- 

 ments, more or less extensively, into one tube, as the 

 Mallow tribe, in which such union is very remarkable, 

 and the Geranium family, in which it is less evident. 



17. DiADELPHiA. Stamens united into 2 parcels^ 

 both sometimes cohering together at the base. This 

 Class consists of Papilinaceous flowers, and is there- 

 fore natural, except that some such genera having 

 distinct Stamens are excluded, and referred to the 

 tenth Class, in consideration of their number solely i 

 as some ringent flowers with only 2 Stamens are 

 necessarily placed, not in the 14th Class, but the 2d. 



18. PoLYADELPHiA. Stamcus united into more than 

 2 parcels, as in St. John's- wort. A small Class, in 

 some points related to Icosajidria. 



19. Syngenesia. Stamens united by their Anthers 

 into a tube, rarely by their Filaments also ; and the 

 flowers are Comjiound. A very natural and extremely 

 numerous ^lass. Examples of it are the Dandelion, 

 Daisy, Sunflov\er, &c. 



20. Gynandria, Stamens united with, or growing 



out of the Pistil j either proceeding from the Germen^, 

 pp 



