en 



WV 3. Blister Swamp. Acreage: 40. < 



(Ji 

 Location: Pocahontas County; Spruce Knob Quadrangle; 19 miles SE of Elkins; —I 



reached via U.S. 33, south of Forest Road 14. Map on page 526. < 



Description: Sphagnum bog with balsam fir (Abies balsamea). Fir forest extends O 



over 0.5 mile along the stream draining the swamp. Twin flower (Linnaea Z 



borealis var. americana) found here is in the southernmost known locality in "> 



eastern North America. For description of the ecological community see 

 reference. 



Reference: Clarkson, R. B. 1966. Vascular flora of Monongahela National 

 Forest, Castanea 31(1 ): 1-1 19. 



Encroachments: Grazed by cattle and sheep. 



Ownership: Truman Arbogast, Circleville, W. Va. 26804. 



Data source: E. M. Olliver, Box 1231, Elkins, W. Va. 2624 1 . 



Other knowledgeable persons: E. B. Vinoski, District Ranger, Greenbrier 

 Ranger District, Bartow, W. Va. 24920; Roy B. Clarkson, Department of Biolo- 

 gy, West Virginia University, Morgantown, W. Va. 26505; Earl L. Core, Depart- 

 ment of Biology, West Virginia University, Morgantown, W. Va. 26505; Dr. Eu- 

 gene Hutton, Grandview Ave., Elkins, W. Va. 26241. 



