20 



KEY TO THE SPECIES NOT INCLUDED 

 ABOVE. 



(THE GENERA FOR CONVENIENCE ARE ARRANGED 

 ALPHABETICALLY.) 

 ACHNERIA. 



1. Panicle very dense to compact; branches extremely 



short 2 



Panicle trichotomous, loose; branchlets at least equal to 

 \ the panicle 3 



2. Panicle l-2£ in. long. Spikelets U-lf lin. long 



...A. ecklonii. 

 Panicle less than 1 inch long. Spikelets 1} lin. long. 



A. curvifolia. 



3. Spikelets 1-11 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 (j 



5. Glumes sub-acute. Valves prominently 0-11 nerved. 



A. aurea. 

 Glumes obtuse. Valves obscurely 5 nerved. A. capensis. 



6. Valves much shorter than the glumes ... A. papillaris. 

 Valves equalling the glumes or nearly so 7 



7. Culms many noded. Spikelets U-if lin. long. A. ampla. 

 Culms tew noded. Spikelets 2-3i lin. long 8 



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



A. sclifolia. 

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



setaceous A. hirsuta. 



AGROSTIS. 



1. Spikelets h-i lin. long 2 



Spikelets l£-2£ lin. long 3 



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



A. griquensis. 

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



A. bergiana. 



3. Spikelets U lin. long A. schlechteri. 



Spikelets about 2k lin. long 4 



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



Panicle lax 5 



5. Panicle about 6 inches long A. barbuligera. 



Panicle about II inches or more long A. suavis.. 



