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Journal of the Kentucky Academy of Science 66(2) 



N 



Figure 1. Robertson County, in northeastern Kentucky. 

 The forty-five mistletoe-infested tree locations are indi- 

 cated with solid circles. 



tletoe-infested trees. The chance of mature fruits from a 

 pistillate plant becoming dispersed by birds and estab- 

 lished in new host trees with both sexes present in the 

 near vicinity may be rare especially when there are so few 

 mistletoe-infested trees in the county. Most the 45 host 

 trees tended to be lightly infested; 19 trees had only a 

 single clump, 7 trees had two clumps, and the remaining 

 19 trees had from 3 to 15 clumps. Thus, few trees had 

 both staminate or pistillate plants in the same tree or near- 

 by infested trees. Several host trees were isolated in up- 

 land pasturelands or around residences. Other mistletoe- 

 infested trees of the same species along upland roads or 

 fencerows tended to show an aggregated or clustered pat- 

 tern (Figure 1). 



LITERATURE CITED. (1) Reed, C.F, and RG. Reed. 

 1951. Host distribution of mistletoe in Kentucky. Castanea 



16:7-15. (2) Thompson, R.L. 1992. Host occurrence of 

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 Army Depot, Blue Grass FaciHty, Madison County, Ken- 

 tucky. Trans. Kentucky Acad. Sci. 53:170-171. (3) Thomp- 

 son, R.L., and F.D. Noe Jr. 2003. American mistletoe 

 {Phoradendron leucarpum, Viscaceae) in Rockcastle 

 County, Kentucky. J. Kentucky Acad. Sci. 64:29-35. (4) 

 Thompson, R.L., and D.B. Poindexter. 2005. Host speci- 

 ficity of American mistletoe (Phoradendron leucarpum) in 

 Garrard County, Kentucky. J. Kentucky Acad. Sci. 66:40- 

 43. (5) Wikipedia, the free encyclopedia. 2005. Robertson 

 County, Kentucky, http:// en.wikipedia.org/wiki/Robert- 

 son_ County%2 C-Kentucky. Accessed 23 Mar 2005. (6) 

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 W.M. Andrews, S.M. Call, J.A. Comstock, and D.D. Tay- 

 lor. 2002. Ecoregions of Kentucky (color poster with map, 

 descriptive text, summary tables, and photographs). U.S. 

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 Grabowski Jr., and S.L. Moore. Geologic map of Ken- 

 tucky. U.S. Geological Survey, Washington, D.C. (8) Bai- 

 ley, H.H., and J.H. Winsor. 1964. Kentucky soils. Univ. 

 Kentucky Agric. Exper. Sta. Misc. 308. (9) Braun, E.L. 

 1950. Deciduous forests of eastern North America. Haf- 

 ner Press, New York, NY. (10) Kiichler, A.W 1964. Man- 

 ual to accompany the map of potential natural vegetation 

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 Bull. 36. (11) Trewartha, G.T, and L.H. Horn. 1980. An 

 introduction to climate. 5th ed. McGraw-Hill Book Co., 

 New York, NY (12) Kentucky Cfimate Center. 2001. The 

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 ty station, http:// kyclim.wku.edu/cgi-bin/stations/152775. 

 Accessed 29 Mar 2005. (13) Spooner, D.M. 1983. The 

 northern range of eastern mistletoe, Phoradendron sero- 

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 Club 110:489-493. (14) Garman, H. 1913. Woody plants 

 of Kentucky. Univ. Kentucky Agric. Sta. Bull. 169:3-62. 

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