100 KEY AND FLORA 
Fic. 18. Types of pods of Crucifere 
A, flattened pod of Arabis, seeds in a single row in each cell: s, cross section 
of pod, showing flattening parallel to the partition. B, pod of Radicula 
palustris, seeds in several rows. Cy nearly cylindrical pod of Sisymbriun. 
D, beaked pod of white mustard (Sinapis alba). EB, dried necklace-shaped 
and beaked pod of radish (Raphanus Raphanistrum). FF, flattened pod of 
shepherd’s purse (Capsella Bursd-pastoris) 8, eross section, showing flat- 
tening at right angles to the partition. G, flattened pod of Lepidinm cam- 
pestres 8, cross section, showing flattening at right angles to the partition. 
(The pods natural size, the sections somewhat magnified.) (After Cosson 
and De Saint-Pierre) 
A 
Pods short and flattened, contrary to the partition, splitling open when ripe. 
Pod roundish, Lepidium, LV 
Pod triangular, inversely heart-shaped. Capsella, V 
B 
Pods globular or cylindrical, splitting open when ripe. 
(a) Pods globular. Flowers yellow. Lesquerella, III 
