120 



HORDEAE 



Lolium 



Hordeum jubatum L. 



50 



Map 192 



Lolium perenne L. 



~ S3 

 Map 193 



Lolium multiflorum Lam. 



says: "Found growing abundantly in Vanderburgh County during July." 

 I do not have any data except the county locality, so I have not been able 

 to visit the place to ascertain whether it persists or is spreading. I am 

 including this species in our flora upon his authority. Since this is a 

 western species, it has been introduced here and should be so regarded. 



Mont, to Alaska, southw. to N. Mex., Calif., and in S. A. ; introduced in 

 some of the eastern states. 



3. Hordeum jubatum L. Foxtail Barley. Map 191. This species has 

 become well established in the northern half of the state, especially in the 

 lake area where it has already become a veritable pest. It is found mostly 

 along roadsides and railroads and in waste places, fallow fields, and 

 pastures. It is extremely doubtful that this species is a native of Indiana. 



Newf. and Lab. to Alaska, southw. to Md., 111., Mo., Tex., Calif., and 

 Mex.; introduced in the Eastern States. 



47-395. LOLIUM L. Ryegrass 



Glumes shorter than the spikelets. 



Lemmas mostly 5-6 mm long, awnless (sometimes short-awned) ; spikelets mostly 



5-10 (12) -flowered 1. L. perenne. 



Lemmas mostly 7-8 mm long, awned ; spikelets mostly 10-20-flowered 



2. L. multiflomm. 



(Humes as long as or longer than the spikelets. (See excluded species no. 56, p. 1027.) 

 L. temulentum. 



1. Lolium perenne L. Perennial Ryegrass. Map 192. This species is 

 doubtless sparingly found throughout the state. It has been sown inten- 

 tionally as an adulterant of grass seed in meadows and lawns. It is now 

 found as an escape along roadsides, on the unkept borders of lawns, and 

 in waste places. Besides one small colony which I have seen, I have no 

 evidence to indicate that it is more than an occasional escape. Usually 

 known in commerce as English Ryegrass. 



Nat. of Eu. ; Newf. to Alaska, southw. to Va. and Calif. 



