IOWA ACADEMY OF SCIENCE 



is bufonius L. Abundant in damp ground. 

 J uncus tei o Willd. Common in damp ground. 



us torreyi Coy. Scarce, along the Umatilla. 



J uncus oxymeris Eng. Scarce, near the Umatilla. 



Vagnera stdlata (L.j Morong. Plentiful in one place in a damp 

 thicket on the bank of the Umatilla. 



Asparagus officinalis L. Sparingly escaped along the Umatilla. 



Salix amygdaloides Anders. Abundant in places along the Co- 

 lumbia, reaching a height of ten to twelve feet and forming 

 close thickets. It also occurs plentifully along the Umatilla. 

 becoming much larger. 



Salix exigua Xutt. Frequent with the preceding along the 



lumbia. 

 Salix sp. An undetermined species past fruiting ; common along 

 the Umatilla and sometimes forming close thickets. 



Populus trichocarpa T. and G. Frequent along the Umatilla, and 

 probably more so formerly. Some of these trees grow about 

 a swampy place close to the town and have attained a good 

 size. 



Alnus rhonibifolia Xutt. Rather plentiful along the Umatilla. 



douglasii Planch. One or two specimens were found on a 

 high dry slope above the Umatilla. 



TJrtica holosericeus Xutt. Frequent along the Umatilla, the 

 plants remarkably tall and robust. 



indra pallida A. DC. Common and quite generally dis- 

 tributed in the high arid sections. 



ms Pursh. Very plentiful in places, especially in 

 loose, dry sand. 



Eumex mexicanus Meisn. Common in moist ground along the 

 Umatilla. 



nex crispus L. Very common in moist ground. 



arioides L. Scarce, in wet places along the Uma- 

 tilla. 



Polygonum aviculare L. Common in moist ground. 



Polygonum majus ^Meisn.) Piper. Common and generally dis- 

 tributed through the arid section. 



