Upliam.] 
158 
[May 21, 
a railway weed at Minneapolis ; frequent in grain and fallow fields, 
Langdon, North Dakota, and westward. 
Sisymbrium incisum, Engelm., also common or frequent in old 
fields at Langdon and westward. 
Sisymbrium officinale. Scop. {Hedge Mustard) , common in towns 
and villages, and on fallow land. 
Brassica Sinoffistrum, Boiss. ( Field Mustard , Charlock ), com- 
mon or frequent, and very troublesome, in grain fields of Minne- 
sota and North Dakota, so that farmers allowing it to go to seed 
are subjected to a penalty by law ; frequent, but well suppressed, 
in Manitoba. 
Brassica nigra , Koch ( Black Mustard ), a common weed in 
southern Minnesota ; less frequent in the Red river valley. 
Brassica campestris , L. {Kale), common or frequent in grain 
fields in Manitoba, and spreading into Minnesota. 
Capsella Bursa-pastoris, Moench {Shepherd’s Purse), “ found in 
profusion wherever there is cultivation.” 
Thlaspi arvense, L. {Field Penny cress, Mitliridate Mustard ), in 
Manitoba called “ St inking Weed” from its flavoring the milk and 
butter of cows that have eaten it ; a most noxious weed, long es- 
tablished and very abundant on cultivated land in the vicinity of 
Winnipeg, recently spreading into Minnesota and North Dakota; 
observed, in 1887, completely filling a fallow field one mile east of 
Northcote, Minn. ; also the same year seen plentiful in fields near 
Georgetown, Minn., and common on railway grades and less fre- 
quent by roadsides at Emerson and Gretna on the international 
boundary; first noticed near Fargo and Moorhead in 1886. 
Lepidinm Virginicum, L., a common or frequent roadside weed 
in Minnesota and the Dakotas, northward to Langdon, immigrat- 
ing from farther south. 
Lepidinm intermedium, Gray, abundant, on roadsides and in 
fields throughout Minnesota and North Dakota, and from Manitoba 
to the Rocky mountains and Peace river. 
Lepidium sativum , L., frequent, as reported by Macoun, close 
to old Fort Garry, Winnipeg. 
Saponaria officinalis , L. {Soapwort, Bouncing Bet) , occasionally 
adventive by roadsides in southern Minnesota ; rare in the Red 
river valley. 
Saponaria Vaccaria, L. {Cow Herb), becoming common and per- 
nicious in wheat fields throughout Minnesota and Manitoba; in 
