Excluded Species 1051 



ago. It was a garden escape, no doubt, which should be excluded. It was 

 found on a sand hill along a roadside in Porter County in 1934 by W. B. 

 Welch. The specimen is in the herbarium of Wabash College. 

 Nat. of Eu. ; reported from Newf. to Fla. and the Gulf States. 



255. Lepidium sativum L. Garden Cress. This species was reported 

 by Phinney as an escape in Wayne County. Since there are no additional 

 reports, it may not yet be established anywhere. It is the cultivated cress 

 of gardens and is likely to become an established escape. 



Nat. of Eu. ; local from Que., N. Y. to B. C. 



256. Sisymbrium Loeselii L. This plant was found in flower on July 

 6, 1930, in St. Joseph County by Marcus Lyon, Jr., and J. A. Nieuwland. 

 We have no data that it is established. 



Nat. of Eu. 



257. Diplotaxis tenuifolia (L.) DC. This European weed was first 

 reported by Erlanson for Grimes (Proc. Indiana Acad. Sci. 1923: 139. 

 1924) as found along the Monon Railroad 2 miles north of Roachdale in 

 Montgomery County. The specimen can not be found at DePauw Uni- 

 versity, but there are two specimens collected by Grimes in Warren County 

 along the roadside 2 miles east of Pine Village, August 29, 1914. The 

 second record was made by Nieuwland & Just (Amer. Midland Nat. 12: 

 220. 1931) who say that it was found July 8, 1930, near the Kankakee 

 River in sec. 19 of Greene Township of St. Joseph County. The specimen 

 is in the herbarium of the University of Notre Dame, and I refer it to 

 Erysimum cheiranthoides L. These are the only records. There is no 

 evidence that it is established in the state. 



Nat. of Eu. 



258. Erucastrum gallicum (Willd.) 0. E. Schulz. (Erucastrum 

 Pollichii Schimp. & Spenn. Rhodora 13: 11. 1911.) On September 1, 1930, 

 Paul C. Standley found two plants on a railroad embankment near the west 

 boundary of Porter County at the intersection of State Road 53. He gave 

 one specimen to me and the other is deposited in the herbarium of the 

 Field Museum. In 1937 Chas. M. Ek found a few plants in the railroad 

 yards in Tipton and also a few plants in dry soil along the railroad 5 

 miles west of Tipton. This species is probably already established as a 

 ballast migrant. 



Nat. of Eu. 



259. Brassica hirta Moench. (Rhodora 40: 306. 1938.) (Brassica 

 alba (L.) Rabenh., Brassica alba (L.) Boiss. of Gray, Man., ed. 7, and 

 Sinapis alba L. of Britton and Brown, Illus. Flora, ed. 2) . White Mustard. 

 This species has been reported from various parts of the state, mostly 

 by early authors whose reports are now 50 years old. I have never seen 

 it and there is no evidence that it is able to maintain itself. The seed are 

 a household commodity for use in pickling and this fact accounts for its 

 wide distribution. 



Nat. of Eu. but not yet considered established. 



