Plate II. 



B 



Fio.lt Section of Potato tuber. Solatium tuhcnmim. A. brown epidermis; B, 

 rectangular cells Jnsl beneath i>piiiermis; (', bypodermal cells containing ertwtal- 



loiilx (!'): l>, starch bearing parenchyma; E, starch grains. (x80). (.Modified after 

 Landois and Stirling 1 .) 



Fl(3. 12. Various forms of parenchyma cells. Kiir. A. Stellate from the stem of 

 I'nnttilii in : l-'iir. 15. Ellipsoidal and rectangular from the I'ool of Jlitiirhitli ; Kisr. <;. 

 Cylindrical from I lie llwtrinlh root, (.1 t richome. or i-oot liair): Fiji. U. and E. Isodi- 

 ametric and vlohose from I he cortex and pitli of a Geranium stems. A. Cell cavity; 

 B. Intercellular space. (About xlOO.) 



