DIV. II 



AXGIOSPERMAE 



643 



peduncle. In Papaver the separation of the central portion of each carpel from 

 the placentas at dehiscence is limited to the tips of the carpels. These portions bend 

 outwards just below the flat stigmatic expansion, and the kidney-shaped seeds are 



Fio. 654. Cruciferae. 

 Floral diagram (Brassica). 



FIG. 655. Cardamine prattnsis. Flower with 

 perianth removed, (x 4. After BAILLOX.) 



thrown out of the small openings when the capsule, borne on its long stalk, is 

 moved by the wind. 



OFFICIAL. Papaver somniferum, the Opium Poppy, yields PAPAVERIS CAPSULAE 

 and OPIUM. Papaver Rhoeas yields RHOEADOS PETALA. 



Family 2. Fumariaceae. This small family is of interest on account of the 



1) 



FIG. (55(3. Cruciferous fruits. A, CTieiranthus cheiri ; B, Lepidium sativum ; C, Capsella bursa 

 pastoris; D, Lunaria Mennis, showing the septum after the carpels have fallen away. 

 E, Cra-nbe maritima. (After BAILLON.) 



occurrence of transversely zygomorphic flowers in Corydalis (Fig. 653) and a 

 bi-symmetrical corolla with two spurs in Dicentra spectabilis. The fruits are 

 nutlets in Fumaria and capsules in Corydalis and Dicentra. Seeds with endosperm. 



Family 3. Crueiferae ( 21 ). This family is mainly distributed in 



