308 



BOTANY. 



THE ANDRCBCIUM, OK STAMEN- WHOKIj. 



Numerical Terms The number of stamens in the flower or the 



andrcecium is indicated by such terms as 

 Monandrovs, signifying of one stamen ; 

 ' Diandrous, of two stamens ; 



Fig. 201. Fig. 202. FiQ. 203. 



Fig. 201.— Tetrandrous flower ; stamens didynamous. 

 Fig. 202.— Hexandrous flower; stamens tetradynamous. 

 Fig. 203.— Bicyclic andrcecium. 



Triandrous, of three stamens ; 



Tetrandrous, of four stamens— when two of the stamens are longer 

 than the other two, the andrcecium is said to be didynamous (Fig. 

 301); 



Pentandrous, of five stamens ; 



Fig. 204. Fig. 205. Fig. 206. 



Fig. 204.— Andrcecium of monadelphous stamens. 

 Fig. 205.— Andrcecium of diadelphous stamens. 

 Fig. 206.— Andrcecium of triadelphous stamens. 



Hexandrous, of six stamens ; when four are longer than the re- 

 maining two, the andrcecium is said to be tetradynamous (Fig. 202). 



Other terms of similar construction are used, as heptaiidrous, seven 

 stamens ; octandrous, eight ; enneandi'ous, nine ; dccandrovs, ten ; 

 dodecandrous, twelve ; and polyandrous, many or an indefinite num- 

 ber of stamens. 



