A 
170 THE AMERICAN MIDLAND NATURALIST. 
it overshadowed everything in its vicinity. It was dug out 
rather roughly and removed to a more exposed place at the 
northwest corner where it continues to grow but not with 
its original exuberance. To be ‘‘consistent’” I should call this 
species “woodland meadow-parsnip.” With us it grows 
abundantly in the woods or around their margins, in thickets 
and openings but not so much in the open away from the 
woods. Zizia cordata is a plant of the low places on the open 
prairie. 
37. Solidago serotina. TALL SMOOTH GOLDENROD. This 
came perhaps with Hydrophyllum. It very soon attempted to 
take complete possession and was the first species to be taken 
to task for its pertinacity. The rootstocks were close to the 
surface and eradication was not difficult. 
38. Aster paniculatus. TALL WHITE ASTER. This was a 
running mate of the preceding, but its roots were deeper and 
not easily pulled up. The plant is decidedly weedy in low 
ground in the fields. ; 
III. PLANTS INTRODUCED BY NATURAL MEANS. 
39 Chaetochloa glauca. YELLOW PIGEONGRASS. An occas- 
ional plant but it does not thrive under such conditions. 
40. Ulmus americana. WHITE ELM. This may be called a 
weed of gardens and flower beds where the young plants 
spring up from seeds blown from trees of streets and yards. 
41. Kochia scoparia. BURNING BUSH. Some of these 
came the past year probably from seeds scattered from plants 
with which the children were playing the preceding fall. 
42. Alsine media. CHICKWEED. This makes itself quite 
at home-as usual in shaded places. 
43. Bursa bursa-pastoris. SHEPHERD’S PURSE. A few 
plants of this common weed. 
44, Potentilla monspeliensis. ROUGH CINQUEFOIL. An 
occasional plant. 
45. Prunus virginiana. CHOKECHERRY. One plant which 
probably came from seeds of fruits brought from the woods. 
46. Oxalis cymosa. SMOOTH YELLOW SORREL. A few 
plants of this are usually present. < 
