36 FLORA OF BURLINGTON AND VICINITY 



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

 quent. July-Sept. 



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



P. sa^ittatum L. Arrow-leaved Tear-thumb. Low ground; common. 

 Aug., Sept. 



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

 Aug., Sept. 



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



RUMEX L. Dock. SorrEi, 



R. AcETOSA L. Garden Sorrel. Adventive in grass lands, Burling- 

 ton, (Jones). June. 



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

 soil; a common weed. May- July. 



R. Britanuica 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. OBTusiEOEius L. Bitter Dock. Fields and waste places; common. 

 June, July. 



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



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



CHENOPODIACEAE. GOOSEFOOT FAMILY 



CHENOPODIUM (Tourn.) L. Goosefoot. Pigweed 



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

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



Co 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. 



