225 



97- * Lolium percnue L. var. cristatum Docll. A single speci- 

 men was collected in a wooded ravine near Eola, Polk 

 County, at considerable distance from any dwelling or 

 cultivated ground. 



98. Agropyron tenerum Vasey. Not uncommon in dry soil in 



meadows and grain-fields. 



99. * Agropyron repens (L.) Beauv. Beginning to appear in 



gardens and fields, and threatening to become a serious 

 nuisance. 



100. Elymns glaticiis Buckl. Very common in dr}' soil, and 

 extremely variable. 



loi. * Triticiim vulgar e L. A common escape along railroads 

 and in waste places. Both the bearded and beardless 

 forms occur. It does not seem worth while to maintain 

 Host's T. compactuni for the Western "soft" wheat (X). 



102. * Horde nm murinum L. Very common in waste places. 



103. * Hordeum Gussoneanum Pari. Common, especially in 



dried mud along roadsides. 



104. * Hordeum juhatum L. Only a few isolated specimens 



have been found in waste places. 



105. * Hordeum nodosum L. Common along ditches and on 



banks of streams. 



106. Sitanion jitbatum J. G. Smith. Occasional on dry gravelly 



prairies about Salem (X). 



In addition to the cereals mentioned in the above list, Zea 

 mays L. is a common field crop. An occasional farmer attempts 

 the cultivation of "Sudan-grass" (Andropogon Sorghum (L.) 

 Brot. subsp. sudanensis Piper). Miscanthus sinensis Anderss. is 

 sometimes cultivated for ornament. A beautiful hardy Japanese 

 bamboo of the genus Phyllostachys is a favorite among the local 

 landscape-gardeners, but has never flowered. 



It will be observed that of the 106 species and varieties listed 

 above, 55, or over half the entire number, are introduced, and 

 51 native; and while the latter number may be regarded as fairly 

 constant, the former may be expected to show a steady increase* 



* This finds further illustration in the fact that since writing the above Digitaria 

 sanguinalis (L.) Scop, and Setaria glauca (L.) Beauv. have both appeared spo- 

 radically in Salem. 



