TISaUES OF ANGIOBPEJMMS. 



445 



Fig. 323.— Diagrams of dicotyledonous etems as cevu in crosj^-section. iZ, the cor- 

 tical, df, the meaallary portion of the fuudameuiul s>bLl-iii ; p, the phloem ; x, the 

 xylem ; 6, 6, 6, groups of bast fibres ; /c, the fascicular, ic, the interfascicular cam- 

 bium.— After Sacbfi. 



Fig. 324.— Cross-section through a young internode of Sambucus nigra. P, P, cor- 

 tical parenchyma ; p,p. parenchyma of the pith ; between r — raudi*— P, eievii tis- 

 sue ; g, g^ pitted vessels; 5, «, and above, spiral vessels ; c — c, the cambium zone, x 

 220.— After De Bary. 



