20 



KEY TO THE SPECIES NOT INCLUDED 

 ABOVE. 



(THE GENERA P^OR CONVENIENCE ARE ARRANGED 

 ALPHABETICALLY.) 

 ACHNERIA. 



1. Panicle very dense to compact; branches extremely 



short ... 2 



Panicle trichotomous, loose; branchlets at least equal to 

 i the panicle 3 



2. Panicle 1-2| in. long. Spikelets li-l| lin. long 



...A. ecklonii. 

 Panicle less than i inch long. Spikelets IJ lin. long. 



A. curvifolia. 



3. Spikelets 1-1| lin. long. Leaves not more than ^ inch 



long A. microphylla. 



Spikelets larger. Leaves longer 4 



4. Glumes obtuse to sub-acute 5 



Glumes very acute to acutely acuminate 6 



5. Glumes sub-acute. A'alves prominently 9-tl nerved. 



A. aurea. 

 Glumes obtuse. \^a!ves obscurely 5 nerved. A. capensis. 



6. ^'alves much shorter than the glumes ... A. capillaris. 

 Valves equalling the glumes or nearly so 7 



7. Culms many noded. Spikelels 1^-1| lin. long. A. ampla. 

 Culms few noded. Spikelets 2-3^ lin. long 8 



8. Panicle small. Spikelets 2-2^ lin. long. Blades setaceous. 



A. setifolia. 

 Panicle 4-6 inches. Spikelets 2f-3 lin. long. Blades not 



setaceous A. hirsuta. 



AGROSTIS. 



1. Spikelets ^-1 lin. long 2 



Spikelets li-2| lin. long 3 



2. Spikelets ^ lin. long. Glumes obtuse. Panicle dense. 



A. griquensis. 

 Spikelets f-1 lin. long. Glumes acute. Panicle lax. 



A. bergiana, 



3. Spikelets 1^ lin. long A. schlechteri. 



Spikelets about 2J lin. long 4 



4. Panicle, spike-like, lobed A. natalensis. 



Panicle lax 5 



5. Panicle about 6 inches long A. barbuligera. 



Panicle about 11 inches or more long A. suavis. 



