PROCEEDINGS OF THE NATURAL [APRIL, ’88. 
158 
ornament, etc., the remaining sixty-nine species are weeds, 
among them the worst weeds we have—which have been 
accidentally introduced into our flora. 
As Milwaukee has long been a centre of immigration from 
Europe we are not surprised to find that the great majority 
of our adventitious plants are European, and as most of the 
immigrants are German we should expect these introduced 
forms to be largely German. Actually the whole 113 species 
occur in Germany. Each year marks the arrival of some 
German plant not before found in the country. The immi¬ 
grants, largely peasants from the rural districts of Germany, 
often bring with them much household furniture which must 
requently contain seeds of the commoner German plants 
These people often intentionally bring with them seeds of the 
ood plants and garden flowers which they have learned to 
prize m their fatherland. The railway trains, too, contin¬ 
ually entering the county from points, north, west and south, 
introduce many plant seeds with the cattle, grain, etc. 
veral of the species enumerated in the following list have 
probably disappeared from the county forever. Our native 
orchids are fast vanishing, partly because their damp haunts 
useful mpidly c ° nverted lnto spots more accessible and 
more d r 30 partly becau se, like the majority of our 
more delicate native snpnV« a J 7 
the striicro-l ( . P the ^ are unable to compete in 
tne struggle for existence with those mK «. j, 
wVuVv. „ i , cnose robust European weeds, 
ich can adapt themselves to all sort— c . , 
consmnAnU fi j- aU sorts of conditions and are 
consequently flooding our country. 
literature. 
Ver f ! fn6e Flora Wisconsin*. (Verhandlungen d. 
gang 1876 ) & b ° tan ' Gesel] schaft in Wien. Jahr- 
^g^ WSSkryptogamen W’sconsins. Milwaukee, 
ZnL ‘sl" N ^ htra ^ zur Vergleichenden Flora Wiscon- 
sms. (Verhancll. der JC xr , ~ « 
schaft in Wien T ahr, ' S ' 
Jahrgang 1878.) 
Bruhin, T. A. 
