1924] Blake,—Erucastrum Pollichii in West Virginia 23 
the National Herbarium, along the railroad at Harpers Ferry, West 
Virginia. 
Although evidently sporadic and rare in the East, this European 
crucifer seems to have taken a foothold in North Dakota. It was 
first reported’ as well established in the vicinity of Fargo, where it 
had been collected in Oct., 1909, by O. A. Stevens. H. F. Bergman,” 
in his * Flora of North Dakota," records it from along railroad tracks 
at Fargo, Grand Forks, and Walhalla. O. A. Stevens,’ recording it 
from other localities, states that it “has now been found at many 
places, chiefly along the railroad tracks,” and that “seeds have been 
identified in several samples of timothy and millet coming from near 
Grand Forks." A specimen collected by him at Fargo, Sept., 1912, 
is in the National Herbarium. In a recent letter, Mr. Stevens informs 
me that he has since found the plant at several localities in Minnesota 
near the North Dakota line—near East Grand Forks, at Moorhead, 
and in considerable abundance along the roadside near Sabin. During 
the past summer he also collected a specimen along a prairie trail 
in southern MeKenzie County, western North Dakota, some 30 miles 
from a railroad.—S. F. BLAKE, Bureau of Plant Industry, Washington, 
D. C. 
PSEUDOTAENIDIA IN ManvLAND.—Hunnewell's recent reference 
(RHoporaA 25: 168. 1923) to this local plant has reminded me of a 
long neglected intention of reporting the genus from a station several 
miles north of its accredited home. September 14, 1917, while I was 
returning from a business trip into Western Maryland, operations 
of a highway construction gang enforced an unpremeditated stop of 
about half an hour at the western base of Polish Mountain, in Alle- 
ghany County, Maryland. Browsing around, to pass away the time, 
I found this rare and strange umbellifer, with the foliage of Taenidia 
and the fruit of Pastinaca. Seed only was collected, I not being pre- 
pared at that time to care for herbarium specimens. On September 
10, 1918, a premeditated stop was made at this station, and then a 
few specimens were carefully stored away in a small press brought 
along for the purpose. As far as observed, the plants were scarce 
and scattered. 
On this second trip, a large colony of Taenidia integerrima was 
found along this same highway, where it descends the eastern side of 
1 Ann. Rep. N. D. Agric. Exp. Stat. 22: 80. 1912. 
? Bienn. Rep. Agric. Coll. Surv. N. D. 6: 194. 1918. 
3 Bull. Torrey Club 49: 94. 1922, 
