62 



THE TRIBES AND THEIR GENERA. 



PANICE&. 



Panicum. Panicle compact or spike-like, or more or less 

 spreading. Spikelets dorsally compressed, small, naked, or 

 awned. Florets one, or only one perfect with an inferior rudi- 

 ment or barren floret. Glumes generally three, the lowest 

 minute, the second larger and empty, the third often containing 

 a male floret. Paleae awnless or with short awns. Outer palea 

 concave, indurated, with no lateral appendages or pits at base* 

 embracing with its margins the inner palea, which is likewise 



indurated and glossy and of similar 

 shape, but flatter, with two slight 

 ribs. Lodicules minute, inflated. 

 Stamens three. Ovary roundish. 

 Stigmas two. Grain enclosed by 

 paleae, flattened on one side. 



Species. P. sanguinale, 3. 

 P. glabrum, 4. 

 P. verticillatum, 5 . 

 P. glaucum, 6. 

 P. vtride, 7. 



Panicumviride. P. crUS-galli, 8. 



Floret. For Spikelet see p. 118. * 



PHALARIDE^E. 



Florets one. 



Spike. Phalaris, 11. 

 Panicle. Digraphis, 12. 

 Florets three. 



Spike ; middle floret perfect. 



Anthoxanthum, 10. 

 Panicle ; uppermost floret 

 perfect. Hierochloe, 9. 



Phalaris. Spike ovoid or cylin- 

 drical, Spikelets imbricated. Florets 

 one. Glumes four, unequal, the 

 third and fourth reduced to scales, 



Phalaris eananensis. 



the first and second nearly equal, Floret. For Spikelet see p. 119. 





