112 



THE RECEPTACLE. 



[section 12. 



orifice is ut tlie base, l)y the side of the hiluin or place of attach incut. The 

 adiiate portion of the funiculus, which appears as a ridge or cord cxteudiiig 

 from the hilum to the chalaza, and which distinguislies this kind of ovule, 

 is called the Riiapue. The aniphitropous ovule (Fig. 346) has a short or 

 iiicoinplete rhaplic. 



322. Fig. 348-352 show the stages tiirough which an ovule becomes 

 anutropous in the course of its growth. The annexed two figures are sec- 

 tious of sucli an ovule at maturity ; and Fig. 355 is Fig. 353 enlarged, 

 with the parts lettered. 



Section XII. MODIPICATIONS OF THE RECEPTACLE. 



323. The Torus or Receptacle of the flower (237, Fig. 223) is the por- 

 tion whicii belongs to the stem or fixis. In all preceding illustrations it is 

 small and short. But it sometimes lengthens, sometimes thickens or vari- 

 ously enlarges, and takes on various forms. Some of these have received 

 special names, very few of which are in common use. A lengthened por- 

 tion of the receptacle is called 



A Stipe. This name, which means simply a trunk or stalk, is used in 



botany for various stalks, even for the leaf-stalk in Ferns. It is also applied 

 to the stalk or petiole of a carpel, in tlie rare cases when there is any, as in 



Fig. 356. Longitmliiial section of flower of Silene Pennsylvanica, showing stipe 

 between calyx and corolla. 



Fig. 357. Flower of a Cleome of the section Gynandropsis, showing broadened 

 receptacle to bear petals, lengthened stipe below the stamens, and another between 

 these and pistil. 



Fig. 358. Pistil of Geranium or Cranesbill. 



Fig. 359. The same, ripe, with the five carpels splitting away from the long 

 beak (carpophore), and hanging from its top by their recurving styles. 



