470 THE PLANT LIFE OF MARYLAND 



GENTIANACEAE. 



Erythraea pulchella (Sw.) Fries. Branching Centaury. 



Throughout the state; in moist open situations; infrequent. 

 Worcester County, Greenbackville (1111). 



Sabbatia angularis (L.) Pursh. Rose Pink. 



Coastal and Midland Zones; in open situations; infrequent. 



Sabbatia stellaris Pursh. Marsh Pink. 



Coastal Zone; in salt and brackish marshes; common. 

 Worcester County, Greenbackville (1114). 



Sabbatia dodecandra (L.) B. S. P. Large Marsh Pink. 



Coastal Zone; in brackish and fresh marshes; common. 

 Worcester County, Boxiron (1060). 



Gentiana crinita Froel. Fringed Gentian. 



Throughout the state; in fields and open meadows; infrequent. 



Gentiana andrewsii Griseb. Closed Gentian. 



Throughout the state; in dry forests and open situations; common. 



Gentiana linearis Froel. Narrow-leaved Gentian. 



Mountain Zone; in hogs and moist sandy forests; common. 

 Garrett County, Thayerville (2060). 



Gentiana villosa L. Striped Gentian. 



Midland Zone; in moist forests; infrequent. 

 Baltimore County, Cockeysville (Robert K. Miller). 



Obolaria virginica L. Pennywort. 



Midland Zone; in rich forests; infrequent. 

 Baltimore County, Catonsville (Robert K. Miller). 



Bartonia virginica (L.) B. S. P. 



Frequent in moist sandy forests in the Coastal Zone, rare in the Midland 



Zone. 

 Worcester County, Snow Hill (1033). 



MENYANTHACEAE. 



Limnanthemum aquaticum (Walt.) Britton. Floating Heart. 



Coastal Zone; in ponds and slow streams; infrequent. 

 Wicomico County, Salisbury (1221 1. 



APOCYNACEAE. 



Mpocynum androsaemifolium L. Dogbane. 



Throughout the state; in dry forests and open situations; common. 



Apocynum cannibinum L. Indian Hemp. 



Throughout the state; in open dry situations; infrequent. 

 Kent County, Lloyds Creek (1705). 



