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-angliw, 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 lucidulns, 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. 

 Bare; 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. 



