586 MINNESOTA BOTANICAL STUDIES 



Monolepis uuttalliana (R. & S.) Greene. Fl. Fran. 168. 



1891. 



This plant has been previously reported from Minnesota as 



occurring at Browns Valley, Minn. (E. P. 8., Sept., 1893). It 



•was also collected at Fort Snelling, Minn. (.4. P. Anderson, 



May, 1893); and at Pipestone, Minn. (Max Menzel, August, 1895), 



Gypsophila muralis Linn. Sp. PL 408. 1753. 

 Not previously reported from Minnesota. 

 This plant has become sparingly naturalized near St. An- 

 thony Park, Minn. (Dr. Otto Lugger, Sept., 1892.) 



Capnoides micraiitliuni (Englm.) Britt. Mem. Torr. Bot. 

 Club. 5:166. 1894. 

 This species has been reported from Minnesota as growing 

 in Martin county and the neighborhood of Sleepy Eye. 



Collected also near Fort Snelling, Minn. (E. P. S., June, 

 1895). 



Lepidiuni apetalum Willd. Sp. PL 3:439. 1800. 



Lepidium intermedium A. Gray. PL Wright. 2:15. 1853. 

 All the Minnesota specimens heretofore referred to Lepidium 

 virginicum Linn, belong to L. apetalum Willd. (Fide Dr. B. L. 

 Robinson.) 



Sisymbrium altissimum Linn. Sp. PL 657. 1753. 



The following is the record of the occurrence of this plant in 

 North America: It was first reported in the Minneapolis Daily 

 Tribune of Sept. 22, 1894, as having been found by me near 

 Minneapolis. In the Bulletin of the Torrey Botanical Club of 

 August, 1895, Mr. Lyster H. Dewey calls attention to its occur- 

 rence around Minneapolis, and also mentions that it has been 

 collected on ballast ground at Philadelphia in 1878, and near 

 Castle Mountain on the western boundary of Alberta in 1885. 

 Mr. Dewey says of the plant that it "promises to be one of the 

 most formidable tumbleweeds yet introduced in the United 

 States." In the Bulletin of the Torrey Botanical Club of Nov., 

 1895, I made mention that the plant had spread so as to be- 

 come a nuisance in the elevator districts of Minneapolis and 

 St. Paul, and also noted that it had been found in several other 

 localities in Hennepin, Ramsey and Dakota counties. 



To this latter note, Dr. N. L. Britton, of Columbia college, 

 added that he had found this plant at Port Arthur, Canada, in 



