ORGANS OF REPRODIJCTION. 



Fig. 509. Fig. 510. 



249 



Fig.m^. A portion of the flower of the White Water-Lily {Xymphcea aIba-> 

 consisting of a pistil invested by a large fleshy disk prolonged from the 

 thalamus below it. The pistil is surrounded by some stamens with petaloid 



filaments and adnate anthers, and by two petals. ^ i^t^. 510. Pistil and 



stamens of the Tulip. The stamens ei and ee have innate anthers. 



Connective.— The relations of the anther to the fihiment, as 

 well as the lobes to each other, are much influenced by the ap- 

 pearance and size of the connective. Thus in all adnate anthers 

 the connective is large, and the lobes more or less parallel to each 

 other generally throughout their whole length (fg. 513). In 

 other cases the connective is very small, or, altogether wanting, 

 as in the Euphorbia (fig. 511), so that the lobes of the anther 



FlQ. 51 



Fig. 512. Fig. 513. Fig. 514. Fig. 515. 



Ftg. 511. A male naked flower of a species of Euphorbia, show- 

 ing the two lobes of the anther, and the almost total absence 



oflhe connective. Fig. .512. A stamen of the Lime (Tilia) 



showing the large connective separating the lobes of the 

 anther." Fig. 5\S. An inside view of a stamen of Mag- 

 nolia glaitca, showing the adnate anther and prolonged con- 

 nective Fig. 514. Two stamens of the Heartsease ( Viola 



tricolor). The connective of one of them is prolonged down- 

 wards in the form of a spur Fig. 515. Sagittate anther 



lobes of the Oleander (Xerium Oleander). The conm.ctive is 

 prolonged upwards in the form of a long feathery process. 



