CLASSIFICATION OF FRUITS. 



147 



The Lomentum is a modification of the legume, either wholly inde- 

 hiscent, or constricted into joints between the seeds and sometimes falling 



Fig. 286. 



Fig. 287. 



Fig. 288. 



Fig. 286. Legume of Pea, burst. 



Fig. 287. a, Curled legume of Medicago sativa; b, of Medicago orbicularis. 



Fig. 288. Legume of an Acacia. 



to pieces in these situations, as in Ornithopus, Desmodium, &c. In the 

 lonientum of Cassia (e. g. Cassia Fistula) there are many false cross septa. 



Fig. 289. 



Fig. 290. 



Fig. 289. Multiple fruit of Geum, cut vertically (a) to show the attachment of the component 



achsenia (6) on a dry receptacle. 

 Fig. 290. Multiple fruit of Blackberry (Eubus), cut vertically, showing the spongy receptacle 



covered with little drupes. 



Syncarpous Fruits Superior. 



Caryopsis. The Caryopsis is the one-seeded fruit of the 

 Grasses, composed of two or, rarely, three carpels, which form a 

 dry pericarp inseparable from the seed. In practice it is hardly 

 recognizable from the achene, except in the last-mentioned charac- 

 teristic. 



L2 



