164 



very densely viscid-glandular. Herbarium vouchers are deposited 

 in the Britton Herbarium and in ten other herbaria. 



New York Botanical Garden. 



Weed Records for the Great Basin 



Bassett Maguire 



The following collections constitute interesting records of weeds 

 recently introduced into Utah and Nevada. These names do not 

 appear in the manuals, nor does the literature assign these plants 

 to Utah or the Intermountain region except in the instances noted. 



Digifaria sanguinalis (L.) Scop., lawn weed, front Animal 

 Science Building, U. S. A. C. campus, Logan, Utah, September 1, 

 1939, Maguire, no. 20372. 



The crab grasses long known in Utah by the troublesome lawn 

 weed, D. Ischaemiiin, are now represented also by the above species, 

 apparently not previously reported from the state. 



Cyperus esciilentus L., weed in cultivated ground, Moab, Grand 

 County, Utah, May 15, 1939, /. F. Parrish; weed along ditch banks 

 and in cultivated fields, vicinity Moab, Grand County, Utah, 

 September, 1939, /. F. Parrish. 



Hitherto unreported from Utah. Recently introduced into culti- 

 vated areas at Moab and vicinity, this troublesome weed has now 

 spread into Salt Lake and Utah Counties. It is here reportedly 

 spreading rapidly in irrigated lands and possibly will become of 

 grave importance. 



*Halogeton glomeratus^ (M. Bieb.) C. A. Mey. ex Ledeb., road- 

 side weed resembling Salsola, vicinity Wells, Elko County, Nevada, 

 September 29, 1938, Hozvard Passey; weed. Bull Camp, Elk Moun- 

 tains, Humboldt National Forest, Elko County, Nevada, June 11, 

 1939, Maguire, no. 17043. A. H. Holmgren, student of the flora 



^ For further discussion of the occurrence of this species in Nevada, see 

 Morton, C. V. A note on Halogeton, Leaflets West. Bot. 3, April, 1941. 



* Duplicates of the cited specimens were identified by Mr. C. V. Morton of 

 the United States National Herbarium. 



