FLORA OF BURLINGTON AND VICINITY 51 



P. arguta Pursh. Tall Cinquefoil. Rocky hills; rare. June, July. 

 South Burlington, (Jones); Colchester, (Griffin). 



P. canadensis L., var. simplex (Michx.) T. & G. Five-finger. Dry 



sandy soil; common. May-July. 

 P. fniticosa L. Shrubby Cinquefoil. Frequent in the boggy meadows 



in the vicinity of Winooski Gorge. May-Sept. 

 P. moiispelieiisis L. Rough Cinquefoil. Dry soil; common. May-Aug. 

 P. palnstris (L.) Scop. Marsh Cinquefoil. Cool bogs; frequent. June, 



July. 

 P. RECTA L. Adventive in lawn, Burlington, (Hazen). Aug. 



PRUNUS (Tourn.) L. Plum. Cherry 



P. ciiueata Raf. Appalachian Cherry. Sandy shores of Lake Cham- 

 plain and on the sand plains; frequent. May. 



P. nigra Ait. Wild or Canada Plum. Woods and fencerows; frequent. 



Apr., May. 

 P. peuusjivauica L. f. Wild Red, Bird, Fire, or Pin Cherry. Dry 



woods and clearings; common. Apr., May. 



P. pumila L. Sand Cherry. Rocky shore of Winooski River; rare. 



May. 

 P. serotiua Ehrh. Wild Black or Rum Cherry. Woodlands; frequent. 



May, June. 

 P. yirgiiiiaua L. Choke Cherry. Fencerows, woods and banks; com- 



mon. May, June. 



PYRUS (Tourn.) L. 



P. americaua (Marsh.) DC. American Mountain Ash. Wet woods; 



occasional. May, June. 

 P. arlmtifolia (L.) L. f. Red Chokeberry. Swamp, Burlington, (Rand). 



May, June. 



P. arbutifolia (L.) L. f., var. atropurpurea (Britton) Robins. Purple 

 Chokeberry. Swamp, South Burlington, (N. F. F.). May, June. 



P. AucuPARiA (L.) Ehrh. European Mountain Ash, Rowan Tree. Nat- 

 uralized and frequent about Burlington. May. 



P. Maeus L. Apple. Fencerows and roadsides; frequent. May. 



P. inelaiioearpa (Michx.) Willd. Black Chokeberry. Moist woods, and 

 also rocky uplands; common. May, June. 



