Hordeum 



Hordeae 



119 



50 



Map 188 

 fystrix patula 



war. Bigeloviana (Fern ) Deam 



50 



Map 190 



Hordeum nodosum L. 



la. Hystrix patula var. Bigeloviana (Fern.) Deam. Map 188. The 

 habitat of the variety is the same as that of the species. It is sparingly 

 found in northern Indiana and is rare in the southern part of the state. 



N. S. to N. Dak., southw. to Conn., Ohio, Ind., and Mo. 



46-410. HORDEUM [Tourn.] L. Barley 



[Wiggans. Classification of the cultivated varieties of barley. Cornell 

 Agric. Exper. Sta. Mem. 46: 365-456. 1921.] 



Rachis of spikes disarticulating. 



Awns of the glumes less than 20 mm long. 



Glumes of fertile spikelets dilated above the base 1. H. pusillum. 



Glumes of fertile spikelets not dilated above the base 2. H. nodosum. 



Awns of the glumes more than 20 mm long 3. H. jubatum. 



Rachis of spikes not disarticulating. (See excluded species no. 55, p. 1027.) . .H. vulgare. 



1. Hordeum pusillum Nutt. Little Barley. Map 189. This species 

 is found usually in slightly acid soils in waste places and fallow fields and 

 along railroads and roadsides. It is infrequent to local in the southern 

 counties and has been found in four of our northern counties in waste 

 places and along railroads. I think that this species has been introduced 

 into the state and I am so recording it. Spillman found it in Knox County 

 in 1890, and, although Schneck reported a wild barley earlier, there is no 

 specimen to verify the report. Our early authors, Baird & Taylor, Barnes, 

 Clapp, J. M. Coulter, and Young, who collected intensively in some of the 

 Ohio River counties, did not report a wild barley of any kind. This 

 evidence, in addition to its habitats, convinces me that it has invaded the 

 state since that time. 



Del. to Wash., southw. to Fla., s. Calif., and Mex. 



2. Hordeum nodosum L. Meadow Barley. Map 190. Hansen (Proc. 

 Indiana Acad. Sci. 37 : 320. 1928) reported this species from Vanderburgh 

 County. He sent me a specimen to have his determination verified. Hansen 



