26 

 Order 82.— ROSACEA. 39. 



Sub-Order 1.— AMYGDALE.E, 



1. Prunus, L. 



Americana, Marsh. (Red Plum.) 

 Banks of streams. Frequent. May. 



maritima, Wang. 



Sandy soil near St. Ann's Church ; A. H. Harvey. 

 Frequent. April. 



Sub-Genus Padus, Mill. (Cerasus, Tourn.) 



P. serotina, Ehrhart. (Wild Cherry.) 

 (Cerasus Virginiana, 3Ix.) 



Open woods and fencerows. Frequent. May, 



Sub-Order 2.— ROSACEA. 



'2. Spir^a, L. 



opulifolia, L. (Nine Bark.) 



Banks of streams; Brandywine Bridge. Frequent. 

 June, 

 salicifolia, L. (Meadowsweet.) 



Wet meadows; Christiana, and above Rockland. 

 Rare. July, 

 tomentosa, L. (Hardhack.) 



Borders of swamps; Hand's, Thomson's. Frequent. 

 July. 



3. Gillenia, Moench. 



trifoliata, Moench. (Bowman's Root.) 



Woodlands; near Bancroft's Mill, and along Naa- 

 man's Creek, &c. Rare. July. 



4. Agrimonia, Tourn. 



Eupatoria, L. (Agrimony.) 



Borders of woods. Frequent. July. 



parviflora, Ait. 



Thickets, &c; Lovering's, Rattlesnake run. Rare t 

 July. 



5. Sanguisorba, L. 



Canadensis, L. (Burnet.) 



Swamps; Thompson's, Hand's, McCrone's. (Com- 

 mon. Aug. 



