CHAPTER V. 



GRASSES CLASSIFIED ACCORDING TO 

 THE ANATOMICAL CHARACTERS OF THE LEAF. 



I. The chlorophyll-tissue, on transverse sections, 



IS ARRANGED IN RINGS ROUND THE VASCULAR 



BUNDLES. There are motor-cells between the 



RIBS, AND the STOMATA ARE SUNK AND OCCUR ON 

 BOTH FACES. 



Gynodon Dactylon. The larger lateral nerves have as 

 a rule three smaller ones between each pair, hardly pro- 

 jecting as ribs. Chlorophyll chiefly in a ring round the 

 vascular bundle. Long hairs on lower surface, a few 

 papillae above. Motor-cells in each shallow furrow. Short 

 cells occur between the long epidermal cells over the 

 bast-region. 



The Panicums also come here, and differ according to the 

 disposition of the sclerenchyma sheaths around the bundles. 



