DESCRIPTIONS OF TRIBES AND GENERA 49 



F 



FlQ. 13. Continued. 



lets one-flowered, linear, laterally compressed ; first emp- 

 ty glume keeled, flowering glumes awned. Stamens two. 

 Species twelve, in East Indies, S. China, N. Australia. 



2. SUB-TRIBE Sacchareae. 



9. (73) Imperata Cyr. Spikelets one-flowered, densely 

 clothed with long silky hairs. Empty glumes mem- 

 branaceous, narrow, the two outer with long hairs. 

 Flowering glume small. Stamens 1-2. Stigmas long, 

 exserted from the point of the spikelet. 



Species five, throughout the tropical and sub-trop- 

 ical zones, also in warm temperate countries. /. arundi- 

 nacea Cyr. is cosmopolitan in its several varieties. It 

 forms the principal grass of the Alang Alang fields 

 in the Malay Archipelago, and furnishes material for 

 thatching roofs. 



10. (74) Miscanthus Andersson. Distinguished from 

 the preceding by the broad panicle, three stamens, and 

 the flowering glumes more or less bifid and usually 

 awned between the teeth or lobes. Tall, the ample 

 panicles terminal and usually silky hairy, rarely naked. 



Species six, in Southern and Eastern Asia to Amur. 

 M. Sinensis Anders. (Utdalia Japonica Trin.) with awued 

 spikelets, is a favorite ornamental grass, as also is the 

 more rare M. sacchariftorus Hack. (Imperata sacchariftora 

 Maxim.) with awnless spikelets, from Amur. 



11. (75) Saccharum L. Panicles usually expanded, the 

 branches (racemes) many-jointed. Spikelets slender, the 



