108 CHLORIDEAE 



44. CHLORIS Swartz. 



Spikes slender, usually more or less naked at 

 the base or with few scattered spikelets: 



panicle of more spikes than the verticillate 1. C. verticillata. 

 whorl. 

 Spikes stouter, spikelet bearing to the very 

 base, spikelets crowded: panicle of a single 

 terminal vertical of spikes. 

 Flowering glume conspicuously hairy, usually 



long villous on nerves and margin. 2. C. elegans. 



Flowering glume not conspicuously hairy, 

 pubescence very short or none. 

 Second flowering glume 3 -nerved, obovate- 



cuneate, apex rounded unequally. 3. C. brevispica. 



Second flowering glume 7-nerved, broadly 

 triangular wider than long, very short 

 awned. 4. C. cucuUata. 



1. Chloris verticillata Null. Uccasional in the eastern and 

 northern parts of the State in the Upper Sonoran Zone. 



2. Chloris elegans H. B. K. A common weed in gardens 

 and fields at the lower levels in the Sonoran Zones. 



3. Chloris brevispica Nash. So far it has been recognized 

 only in the extreme southeastern part of the State. It probably 

 occurs with the next in the eastern tier of counties up to near 

 Portales: in the Sonoran Zones. 



4. Chloris CUCUllata Bisch. Known only from the Pecos 

 Valley near Roswell and Carlsbad. 



45. TRICHLORIS Fourn. 



I. Trichloris fasciculata Fourn. ICnown in New Mexico 

 only from the Mesilla Valley; in the Lower Sonoran Zone. 



46. SCHEDONNARDUS Steud. Wild Crab Grass. 



I. Schedonnardus paniculatus (Nutt.) Trelease. A com- 

 mon grass in the mountains of the State in the Transition Zone 

 extending downward into the Upper Sonoran. 



47. ATHEROPOGON Muhl. 



Spikes small, 30 to 60, each with 4 to 10 spike- 

 lets. 1. A. curtipendulus. • 



Spikes larger, 5 to 11, each with 3 to 6 splke- 



lets. 2. A. bromoides. 



