THE FLORA Ol SCOT! AND MUSCATINE COUNTIES. 231 



399. R. hi rta L. 



Dry soil ; common. 



Lepachys, Raf. 



400. L. pinnata, Torr. <.\: Gray. 

 Prairies and dry banks ; common. 



401. L. columnaris, Torr & (Iray. 



Railroad track, Blue Grass, 1896; Muscatine; infrequent. 

 Helianthus, L. 



402. H. a /uncus, L. 



Railroad tracks and waste places ; frequent. 



403. H. petiolaris, Nutt. 



Frequent along railroad track from Fruitland to Montpelier. 



404. //. rigidus, Desf. 



Dry grounds ; common. 



405. H. latiftorus, 1'ers. 



Dry open places ; frequent. 



406. H. occidentalis, Riddell. 

 Dry sterile soil ; frequent. 



407. H. mollis, Lam. 



Waste ground near railroad track, Muscatine. 



408. H. grosse-scrratus, Martens. 



Low grounds and roadsides ; common. 



409. H. giganteus, L. 



Open woodlands, Muscatine, Pine Mill, Moscow. 



410. H. strumosus, L. 

 Borders of woods. 



411. //. strumosus, L., var. mollis, Torr. cS; Gray. 

 Fence rows, etc.; frequent. 



412. //. tracheliifolius , Willd. 



Borders of woods in sandy soil ; infrequent. 



413. H. decapetalus, L. 

 Frequent. 



414. H. tuherosus, L. Jerusalem Artichoke. 

 Dry grounds and fence rows ; common. 



415. //. tuberosus, L., var. subcanescens, Gray. 

 1 )ry soil, Blue Grass, Cedar River region. 



