674 



Hypericaceae 



Hypericum 



4. Hypericum prolificum L. Shrubby St. Johnswort. Map 1406. 

 Throughout the state although it seems to be rare or absent about Lake 

 Michigan. In moist soil, usually in woods, along streams, and about 

 swamps. More rarely in dry or moist soil along roadsides and on wooded 

 slopes. It was noted in Crawford and Martin Counties where it had 

 abundantly invaded abandoned fields. I also saw it in crevices of sand- 

 stone of a high cliff in Crawford County. 



5. Ont. to Minn., southw. to Ga. and Miss. 



5. Hypericum perforatum L. Common St. Johnswort. Map 1407. 

 An infrequent to common weed throughout the state, being more abundant 

 in the northwestern part. It prefers sandy and poor or worn out soils. 

 Chiefly along roadsides and in pastures, open woods, and fallow fields. 



In California this species is known as Klamath weed and it has become 

 a very obnoxious weed in many parts of that state. It is poisonous to 

 stock but probably not fatal. 



Nat. of Eu. ; widely naturalized in N. A. 



6. Hypericum punctatum Lam. Map 1408. Widely distributed but 

 never occurring in any abundance in any one place. In moist or dry soils 

 in level woodland and on open wooded slopes, along roadsides, and in aban- 

 doned fields. 



E. Que. to Minn., southw. to Fla. and Tex. 



7. Hypericum dolabriforme Vent. Map 1409. I have a specimen col- 

 lected on July 13, 1899, by W. S. Blatchley in the vicinity of Wyandotte 

 Cave. 



Dry, barren hills of Ind., Ky., and Tenn. to Ga. 



8. Hypericum adpressum Bart. Map 1410. In moist, sandy soil on 

 the borders of marshes and in ditches in the northern part of Jasper 

 County. Reported by Schneck from the Lower Wabash Valley. 



