165 



of northeastern Nevada, reports this Chenopod to be widely dis- 

 tributed in the area, showing a wide tolerance of habitat. It occurs 

 prominently in alkali areas associated with Sarcobatiis, or equally 

 successfully on more remote sage or browse slopes to an altitude of 

 7500 feet. 



Roemeria rejracta (Stev.) DC, weed in grain fields, becoming 

 abundant, 1 mile east of Beaver Dam, Box Elder County, Utah, 

 June 6, 1936, Magnire, no. 13684; along road side, Beaver Dam, 

 Box Elder County, Utah, June 23, 1936, A. D. Smith, no. 171. 



Not known to be cultivated in our area, this attractive poppy 

 from the Near East, makes a colorful show in the dry-land grain 

 fields in the vicinity of Beaver Dam, where also it is extensively 

 established as a roadside weed. Its general spread may be expected. 

 Apparently there are no records for the spontaneous occurrence of 

 this plant from any other part of the country. 



EiicUdiiiin syriacnm (L.) R. Br., weed, locally but abundantly 

 established along highway U. S. 50, 25 miles south of Salt Lake 

 City, Utah County, Utah, May 11, 1940, Magnire, no. 18364. 



This recently introduced annual weed, a native of Central 

 Europe, was identified by Dr. R. T. Clausen, through whose hands 

 had passed the earlier (the first from the United States) collection, 

 from Washington, of Dr. W. C. Muenscher.^ The above collection 

 is thus apparently the second known from the entire country. 



Euphorbia Esula L., Leafy spurge, weed, vicinity of Heber, 

 Wasatch County Utah, May 23, 1939, /. /. Bernard; weed, vicinity 

 Richfield, Sevier County, Utah, May, 1937, H. W. Gore. 



During the past few years this troublesome weed has become 

 so generally and commonly spread throughout the state that it is 

 rapidly becoming one of the most troublesome pests. It seems not 

 yet to be in the literature as occurring in Utah. 



Ranunculus testiculatus Chantz, weed in sheep bed grounds, 

 vicinity Ephriam, Sanpete County, Utah, August 7, 1940, Magnire, 

 no. 19983. Attention was called to this annual "bur-weed" by 

 O. W. Nielson, Sanpete County, weed supervisor. He well takes 

 the position that it may become a weed of considerable importance, 

 occurring as it does on sheep bed grounds, since the "burs" are 



- Muenscher, W. C. Notes on Washington plants. Torreya 40: 167. 1940. 



