FLORA OF BURLINGTON AND VICINITY 33 



Q. macrocarpa Michx. Bur Oak, Over-cup or Mossy-cup Oak. Rich 

 soil; rare. May. Burlington, (Jones); Colchester, (Griffin). 



Q. Muhleubergii Engelm. Yellow Oak, Chestnut Oak. Dry limestone 

 hillsides; rare. May. Colchester, (Griffin). 



Q. rubra L. Red Oak. Rich or poor soil ; common. May. Var. ambigua 

 (Michx. f.) Fern. Gray Oak. Rocky woods, Burlington, (Burns). 

 May. 



Q. yelutina Lam. Quercitron, Yellow-barked or Black Oak. Dry light 

 soil ; frequent. May. 



URTICACEAE. NETTLE FAMILY 



BOEHMERIA Jacq. False Nettle 



B. cylindrica (L.) Sw. Moist shady ground; frequent. July, Aug. 



CANNABIS (Tourn.) L. HEmp 



C. SATiVA L. Common Hemp. Waste places; occasional. July-Sept. 



CELTIS (Tourn.) L. Nettle Tree. Hackberry 



C. occidentalis L. Sugarberry. River banks and intervals; occasional. 

 May. 



HUMULUS L. Hop 



H. jAPONicus Sieb. & Zucc. Japanese Hop. Waste places; rare. July. 

 Burlington, (Jones, N. F. F.). 



H. LuPULUS L. Common Hop. An occasional roadside escape. July. 



LAPORTEA Gaud. Wood Nettle 



L. canadensis (L.) Gaud. Rich woods; frequent. July, Aug. 



MORUS (Tourn.) L. Mulberry 



M. ALBA L. White Mulberry. An occasional escape to woods and road- 

 sides. May. Burlington, (N. F. F.). 



PARIETARIA (Tourn.) L. Pellitory 



P. pennsylyanica Muhl. Shaded rocky banks; rare. June, July. Bur- 

 lington, (Jones) ; South Burlington, (N. F. F.) ; Colchester, (Grif- 

 fin). 



