BULLIFOEM CELLS. 



FIG. 33. Part of a section of the leaf of Munroa squarrosa, showing three groups of 

 large bullif orm cells, extending far into the blade. 1 x 50. (Sud worth.* 





FIG. 34. Part of a section, including mid-rib, of a leaf of Cathestechum erectum, 

 showing two groups of bulliform cells extending two-thirds of the way across the 

 leaf. 1x280. (Sud worth.) 



Fro. 35. Section of part of a leaf of JBpicompes Wfifutata, showing five groups of bul- 

 cells. 1x50. (Sudworth.) 



