Fig. 



Explanation o! Figures. 

 Plate XXVIII. 



1. Flowering panicle of savannah form of Imperata arundinacea. 



2. Fruiting panicle of same. 



3. Depauperate culm of Irnperata arundinacea collected from an area where the 



grass is annually cut at the close of the rains and which is then frequently 

 grazed over, (a), (a), the bearded leaf-insertions, (b), (b), the long villi at base 

 of lamina. 



4. Ligule of plant shown in Fig. 3. 



Figs. 



1 — 4 all x f . 



I, 



n, ii, 



in, in, 



IV, IV, 



p, p, 



5. Pair of spikelets of savannah form of Irnperata arundinacea x 2\. 



6. Spikelet of same showing callus hairs x 3. 



7. Callus hairs of same x 3. 

 I, Glume I of same 



„ II 



„ HI 

 „ IV 



Pale of same 

 S, S, Stamens ,, 

 0, Ovary „ 



\ x3. 



