36 FLORA OF BURLINGTON AND VICINITY 



P. peimsylvauiciim L. Common or Pink Persicaria. Moist soil; fre- 

 quent. July-Sept. 



P. Persicari.\ L. Lady's Thumb. Waste places; common. July-Sept. 



P. sagittatum L. Arrow-leaved Tear-thumb. Low ground; common. 

 Aug., Sept. 



P. scandeus L. Climbing False Buckwheat. Moist thickets; frequent. 

 Aug., Sept. 



P. yirginiainiiii L. Moist thickets; occasional. Aug., Sept. 



RUMEX L. Dock. Sorrel 



B. AcETosA L. Garden Sorrel. Adventive in grass lands, Burling- 



ton, (Jones). June. 



R. AcETOSELLA L. Field or Sheep Sorrel. Fields, especially in sterile 

 soil; a common weed. May- July. 



R. Britauiiica L. Great Water Dock. Wet places; frequent. July, 

 Aug. 



R. CRisPus L. Yellow Dock. Fields and waste places; common. June, 

 July. 



R. MExiCANUs Meisn. Rich soil; rare. July. Colchester, (Sprague); 

 Burlington, (N. F. F.). 



R. MONTANUM Desf. A garden escape, Burlington, (N. F. F.). June. 

 Station destroyed by building operations. 



R. OBTusiEOLius L. Bitter Dock. Fields and waste places; common. 

 June, July. 



Bv Patientia L. Patience Dock. Rich open soil ; frequent. June, July. 



R. Terticillatus L. Swamp Dock. Swamps; frequent. June, July. 



CHENOPODIACEAE. GOOSEFOOT FAMILY 



CHENOPODIUM (Tourn.) L. GoosEFooT. Pigweed 



C. ALBUM L. Lamb's Quarters, Pigweed. Fields; a common weed. 



June-Sept. Var. viride (L.) Moq. Becoming frequent. June-Sept. J 



C. AMBROSioiDEs L. Mexican Tea. Adventive on railway embankment, 

 Colchester, (N. F. F.). Aug., Sept. 



C. BoTRYS L. Jerusalem Oak, Feather Geranium. Lake shore and 

 waste places; occasional. July-Sept. 



