Wall-flower — continued. 



Fig. 5. Petals, with long claw, and blade or limb bent at an angle to it. 



Fig. 6. («, b, c.) Stamens- 

 Filament terminating at base of lance-shaped anther. 

 Anther opening lengthways on inner face. 



Fig. 7. Gynoecium with elongated Ovary, short Style and bi-lobed Stigma. 

 Fruit and Seed — 

 Fig. 8. Fruit — a Siliqua, opening by two valves from below upwards. 

 Diagram IV. — Seeds in two longitudinal rows. 



The Septum is not formed by the united edges of the two carpels, but by the placentas meeting, and thus 

 forming a spurious partition. 



Fig. 9. Seed, with short wing. 



Fig. 10. After the seed-cover is removed, nothing is left but the embryo, thus the seed is without endosperm. 

 Embryo — the Radicle is lateral to the two Cotyledons. 



CLASSIFICATION OF WALLFLOWER. 

 Class. — I dicotyledon. 

 Division. — Polypetalae. 

 Sub-division. — Tha lam i fl orae. 

 Order. — Crucifen-e. 



Leaves, alternate. 



Flowers, regular and without bracts. 



Petals, arranged cross-wise. 



Stamens, four long and two lateral short. 



Carpels, united and two chambers formed. 



Fruit, a siliqua or silicula. 



Seed, without endosperm. 

 Genus.— Cheiranthus. 



