77 



of acclimatization that will be followed by a rapid spread. 

 It seems to be the part of wisdom to attack the problem at 

 present when it can be so readily disposed of. 



Many additional and similar examples can readily be cited 

 to prove that it is folly to allow a new plant with dangerous 

 weed characteristics to spread without attempting eradication 

 before it is too late. The Austrian field cress problem surely 

 deserves the "ounce of prevention." 



Radical measures are as necessary against a new weed problem 

 of this character as are needed in dealing with insect and fungus 

 pests. The cost of exterminating the Austrian field cress under 

 present conditions should not be over five hundred dollars 

 and it is believed that the investment will be a very wise one. 

 The federal government has spent many thousands of dollars 

 in attempts to eradicate such new agricultural pests as the corn 

 borer and the Japanese beetle. The Austrian field cress problem 

 now offers an opportunity to prevent possible great losses by 

 the investment of a very modest sum. It is an opportunity 

 that should not be neglected. 



Fig. I. Austrian Field Cress. 



Roripa austriaca Spach. 

 Sketch made from specimens collected at New Milford, NewYork. 



Contribution from the Botanical Department of the Purdue University 

 Agricultural Experiment Station. 



SOME OVERLOOKED SCROPHULARIACEAE 

 OF RAFINESQUE 



Francis W. Pennell 



In preparing my reviews of the family Scrophulariaceae in 

 the "Local Flora"* and in the Southeastern United Statesf the 

 endeavor was made to include all species of this family ever 

 described from these two areas. Once for all I wished to produce 

 this history, so that the application of each name might be duly 

 explained and the goodly proportion of excess names be honor- 



* Torreya 19: 107-119; 143-152; 161-171; 205-216; 235-242. 1919. 

 t Proc. Acad. Nat. Sci. Philadelphia 71: 224-291. 1920. 



