WOOTON AND STANDLEY—FLORA OF NEW MEXICO. 
Plants without stolons; spikelets few, 
scattered; spikes scattered 
along the central axis........- 47. 
One to several sterile lemmas above the 
perfect florets. 
Spikes scattered along the central 
Spikes digitate, or crowded near the 
end of the stem. 
Lemmas with a single awn or 
Tribe IX. FESTUCEAE. 
Lemmas with numerous (9 or more) awnlike divisions 
or awned lobes..........----------- ee ee ee rere 51. 
Lemmas with few lobes or entire. 
Lemmas, at least those of the pistillate spikelets, 
8-lobed and 3-awned .........-..-.----- . 52. 
Lemmas entire or at most 2-lobed. 
Hairs on the rachilla or lemma very long, ex- 
ceeding the lemma in length. 
Rachilla hairy; lemma naked.......--.- 53. 
Rachilla naked; lemma hairy........-.. 54. 
Hairs, if any, on the rachilla and lemma 
shorter than the latter. 
Stigmas barbellate, on long styles; spike- 
lets in 3’s in the axils of the spin- 
escent leaves; plants spreading, 
woolly when young...........-.-.55. 
Stigmas plumose, sessile or on short styles; 
spikelets and plants various, 
Lemmas 1] to 3-nerved. 
Lateral nerves of the lemmas 
hairy. 
Lemmas deeply 2. lobed . 
Lemmas entire or but ‘lightly 
2-lobed. 
Inflorescence a short 
crowded raceme; 
leaf blades with 
cartilaginous mar- 
gins; plants low 
and tufted.......57. 
Inflorescence a rather 
large panicle: leaf 
blades without 
cartilaginous mar- 
gins; plants tall. .58. 
Lateral nerves of the lemmas 
glabrous. 
Second glume very unlike 
the first, broadened 
upward.....eesaecees Oe 
ScHEDONARDUS (p. 85). 
. Boure.ova (p. 85). 
. CHLoRIS (p. 87). 
. TRICHLORIS (p. 88). 
ParProPHoRum (p. 88). 
ScLEROPOGON (p. 89). 
PHRAGMITES (p. 89). 
ARUNDO (p. 89). 
Munroa (p. 90). 
. Dasyocu.oa (p. 90). 
ERIONEURON (p. 90). 
TRIDENS (p. 91). 
SPHENOPHOLIS (p. 92). 
AT 
