The leaves are arranged alternately in two rows (2 ranked) 

 and when perfect consist of (1) a sheath with its margins over- 

 lajjping or grown together surrounding the culm, (2) a blade, 

 and (3) a ligulc, which is placed transversely at the inside of 

 the junction of the sheath and blade. 



Fig. 2. —Forms of iiifloriscence, A. Oropetlum capeiise, a portion of a 

 .simple spike. B. Harpeehloa capensii, a single se^iind spike. O. Eleusine indica,. 

 secund spikes. D. Set'ina perennis, a panicle (false spike). E Andropogon 

 hirtuSy a single pair of racemes from the panicle. F. Sporohohis festivus, var. 

 stup2}eus. A portion of the panicle (A. magnified, the others slightly reduced). 



The inflorescence consists of (1) a xpiLc if the spikelets 



are not stalked (sessile), or [\ 



'0\ 



a race III 



c if the spikelets (or- 



