28 



(11. Crat^gus.) 



oxycantha, L. (English Hawthorn.) 



Roadsides, &c. ; Brindley's. Not common. May. 

 coccinea, L. (White Thorn. Scarlet-fruited Thorn.) 



Borders of woods. Frequent. May. 

 tomentosa, L., var. punctata, Gr. (Black Thorn.) 



Borders of thickets. Not common. May. 

 crus-galli, L. (Cockspur Thorn.) 



Hedges, &c. Common. May. 

 flava? Ait. 



Serpentine fields; Brown's. Rare. 



12. Pyrus, L. 



coronaria, L. (Crab-Apple.) 



Thickets, &c; Stanton. Frequent. May. 

 Malus, L. (Apple Tree.) 



Spontaneous in neglected fields, &c. May. 

 communis, L. (Pear Tree.) 



Spontaneous along fencerows, &c. May. 

 arbutifdlia, L. (Chokeberry.) 



Borders of swamps; Thompson's. Frequent. May. 



13. Amelanchier, Medic. (Shad-bush, Service-berry.) 



Canadensis, T. & G., var. botrypaium, Gr. 

 Moist woods. Frequent. April. 



Order 33.— MELASTOMACE.E. 41. 



1. Rhexia, L. 



Virginica, L. (Deer Grass.) 



Swampy places. Frequent. July. 

 Mariana, L. 



Swamps; Thompson's. Rare. Aug. 



Order 34.— LYTHRACE^E. 42. 



1. Ammannia. Houston. 



humilis, Michx. 



Muddy banks; Barley-mill dam, &c. Frequent. 

 July. 



2. NeSjEA, Cornmerson. (Decodon, Gmelin.) 



vertieillata, H. B. K. 



Swamps; Deringer's, Hand's. Frequent. July. 



