PLANTS OF IOWA 227 



2951. A. azureus, Lindl. Sky-blue Aster. 

 On prairies, frequent. 



2952. A. cordifolius, L. Common Blue Wood Aster. 

 Frequent in hilly woods. 



2953. A. lowrieanus, Porter. Lowrie's Aster. / 

 In woods, not common. 



2954. A. drummondii, Lindl. Drummond's Aster. 

 In dry woods and thickets ; common. 



2955. A. sagittifolius, Willd. Arrow-leaved Aster. 

 In dry woods ; not common. 



2956. A. patens, Ait. Late Purple Aster. 

 Common in dry open places. 



2957. A. phlogifolius, Muhl. Thin-leaved Purple Aster. 

 Woods and thickets. 



2958. A. novce-anglim, L. New England Aster. 

 Common on prairies, etc. 



2959. A. oblongifolius, Nutt. Aromatic Aster. 

 On prairies. 



2960. A. amethystinus, Nutt. Amethyst Aster. 

 In moist soil ; infrequent. 



2961. A. puniceus, L. Purple-stem Aster. 

 Common in bogs. 



2962. A. puniceus lucidulus, A. Gray. 

 In damp places, infrequent, 



2963. A. prenanthoides, Muhl. Crooked-stem Aster. 

 Common along moist borders. 



2964. A. Icevis, L. Smooth Aster. 

 Common on dry prairies. 



2965. A. concinnus, Willd. Narrow-leaved Smooth Aster. 

 Rare; southward. 



2966. A. novi-belgii, L. New York Aster. 

 In wet places. 



2967. A. longifolius, Lam. Long-leaved Aster. 

 In moist ground. 



.2968. A. sericeus, Vent. Silky Aster. 

 On dry banks and slopes. 



