36. 
1. Florets 2 or more, all alike except the reduced upper 
ones. 
3. Lemmas bifid, awned from between the lobes; 
florets, Severals ciccccicleic sciciccilccccccessieciseeceeess Danthonia 
3. Lemmas awnless, mucronate, or awned from the back; 
florets usually 2 or 3 (up to 6 in Avena). 
4. Glumes more than 1 cm. long. Expected (Avena). 
4, Glumes less than 1 cm. long. 
5. Glumes shorter than the florets; lemmas 
awnless or mucronate. 
6. Glumes unequal in shape, the second 
obovate and much broader than the first. 
(Also, plant 3-10 mm. high in species 
CODTeSCEED) S46 oici% oo altel eas «cles eles ells leleis «/oineie s) Sphenopholis 
6. Glumes similar in shape, unequal in size. 
(Also, plant 3-6 dm. high). Expected 
(Koeleria). 
5. Glumes as long as or longer than the florets; 
lemmas awned from the back. 
7. Lemmas keeled, awned from near the apex; awn 
bent and twisted. Expected (Trisetum). 
7. Lemmas rounded on the back, awned from below 
the middle. 
8. Rachilla extending as a bristle 
behind the upper floret; plants 
PCHENN A alijperere sejepereeis 0 © elorekere/ silefslsits e)e/eiejeten DeSChampsial 
8. Rachilla not extending; plants delicate 
annuals. Expected (Aira). 
Arrhenatherum 
Arrhenatherum elatius (L.) Mert. and Koch Fall Oatgrass 
Java Farm. Infrequent along roads near main building area, and 
in old fields. Associate species: Triosteum perfoliatum, Galium 
circaezans, Houstonia purpurea, Lychnis alba. Higman 661, 716, 
163) STB 
