260 



As I have already stated, I went over the ground so frequently that I 

 am sure the plants did not exist before the date given. The only excep- 

 tions to this statement are in the case of the Balm and Poison Hemlock, these 

 grew in isolated places not frequently visited. 

 1883. 



Cassia Chamaecrista, appeared along the W. W. R. R. south of town, now 

 frequent along all the railroads. 



Chri/santhemum IcucantJumum, the Ox-eye daisy, in a meadow near town, 

 now frequently seen. 



1884. 



Laduca scariola, a rank weed, W. W. R. R. in city, spread rapidly along 

 this railroad and is now very common along it. 



iViiCrtn(7raj>/)//sa/o*V?('s, appeared in a corn field near the railroad south of 

 town, disappeared, again reappeared in 1888 and again disappeared. 



Eragrostis major (and perhaps also E. minor), the only addition in the 

 grasses appeared along the W. W. R. R., above town. 



1885. 



Gaura biennis in a waste place near town, now occasionally seen along 

 the W. W. R. R. 



Verbena bracteosa, along roadsides east and west of town, mainly on up- 

 lands, seldom seen in the valley. 



Lithospermum arvense, the so-called Wheat-thief, along W. W. R. R., south. 

 All plants seen were destroyed, but it reappeared the next year. Now 

 common along the railroads, but as yet rare in fields or meadows. 



Solanum Carolinense, seen along the C.,H. & I. R. R., east, and destroyed; 

 none seen for two years. It is now frequently seen. 

 ISSt). 



Melilotus alba, the sweet clover, appeared along the C, H. & I. R. R., west 

 of town. It is now a very common and rank weed. 



Solidago lanceolata, along roadsides just west of town; not inclined to 



Rudbeckia laciniata, a tall cone-flower,' appeared in the valley, and is ap- 

 parently just holding its own ; is not spreading. 



Melissa officinalis, the Balm, is no doubt an escape from a garden. Not 

 spreading. 



Verbena stricta, first seen along the W. W. R. R., south of town ; now fre 

 quent along this road and occasionally seen along the other railroads. 



