Catling, Paul M., Biodiversity, National Program on Environmental Health, Agriculture and Agri-food Canada, William Saunders Building, Central Experimental Farm, Ottawa, Ontario, Canada K1A 0C6, Canada

• The Canadian Field-Naturalist Vol. 119 No. 2 (2005) - Articles
  Identification and Status of the Introduced Black Pine, Pinus nigra, and Mugo Pine, Pinus mugo, in Ontario
  Abstract  PDF