30 



EASY LESSONS IN VEGETABLE BIOLOGY. 



In other cases the more solid matter is deposited so 

 as to form dots, or rings, or spiral fibers, on the cell- 

 wall. (Figs. 6 and 7.) 



Fig. 6. 



8. Vegetable cells are of 

 various shapes, according 

 to the purposes which they 

 serve or the pressure to 

 which they have been subjected. They may be glob- 

 ular, oval, conical, prismatic, cylindrical, branched. 



Fig. 7. 



FlG. 8. Various forms of cells : a. Conical. &. Oval. c. Prismatic, d Cylindric. 

 e. Sinuous. /.Branched. #. Entangled, h, Stellate, i. Fibro-cellular tissue. 



