V 'EG ETA TIVE REP ROD UCTION. 



259 



a great number of sporophylls are to be borne, the torus is 

 elongated, as in the mousetail (fig. 286); or greatly enlarged, 



FIG. 285. FIG. 286. 



FIG. 285. The torus of a flower of stonecrop *(Sedum ternatuni), with the leaves re- 

 moved to show scars ; two leaves of each kind shown, a, sepal ; b, petal ; c, stamen ; 

 d, carpel. Magnified several diam. After Gray. 



FIG. 286. Flower of mousetail (Myositrus iininius\, halved; showing s, spurred 

 sepal ; st, stamen ; st', a staminode or sterile stamen, having the position and form of 

 a petal ; t, elongated torus covered with carpels, some of which are cut through. Mag- 

 nified several diam. After Engler. 



FIG. 287. Flower of the strawberry, halved ; showing elongated and thickened torus. 

 Magnified about 3 diam. After Bessey. 



as in the strawberry (fig. 287); or transformed into a cup, as 

 in the rose (fig. 288). 



When flowers in large numbers are very closely associated, 



