View source for Reference:Haufler1991b


		{{Reference
		| entryid=haufler1991b
		| titleid=Reference:haufler1991b
		| checksum=08e0c1177ee259be5b70ecc642dc5bf5
    		| verbatimtext=Haufler, C. H. and M. D. Windham. 1991. New species of North American  Cystopteris  and  Polypodium, with comments on their reticulate relationships. Amer. Fern J. 81: 7--23.
    
		| author=Haufler, C.H.;
				Windham, M.D.
    		| year=1991
    		| title=New species of North American Cystopteris and Polypodium, with comments on their reticulate relationships
    		| journal=Amer. Fern J
    		| volume=81
    		| pages=7–23
    
  
		}}