1917] 



BURT THELEPHORACEAE OF NORTH AMERICA. VIII 245 



Coniophora arida, although frequently confused with C. 

 cerehella, is very distinct from it by brighter color and adnate 

 habit, and dry and thin, rather than fleshy and thick, struc- 

 ture; in sections the hyphae of C. arida are only 2-A /x in 

 diameter, finer, thinner-walled and often collapsed, and more 

 loosely interwoven than those of C. cerehella. C. arida and 

 G. cerehella are both important timber destroyers. 



Specimens examined: 

 Exsiccati: Cooke, Fungi Brit., ed. 2, 11, under the name 



Thelephora puteana; Ell. & Ev., Fungi Col., 1306, under 



the name Coniophora Ellisii; Komell, Fungi Exs. Scand., 



37a and b. 

 Sweden: Femsjo, E. Fries, type (in Herb. Fries) ; L. Roniell, 



207; Stockholm, L. Romell, 205, and two collections in 



Romell, Fungi Exs. Scand., 37a and b. 

 England: Hampstead, in Cooke, Fungi Brit., ed. 2, 11. 

 Ontario: Ottawa, J. Macoun, 19; Port Credit, J. H. Faull, 



Univ. Toronto Herb., 308 (in Mo. Bot. Gard. Herb., 44891) ; 



Toronto, G. H. Graham, Univ. Toronto Herb., 683 (in Mo. 



Bot. Gard. Herb., 44942) ; Wilcox Lake, J. E. Faull, Univ. 



Toronto Herb., 647 (in Mo. Bot. Gard. Herb., 44927). 

 Vermont: Little Notch, near Bristol, E. A. Burt. 

 Massachusetts : Magnolia, W. G. Farlow. 

 Rhode Island : East Providence, W. G. Farlow. 

 New York: Albany, H. D. House, 1384, N. Y. State Mus. 



Herb., T2, and two unnumbered collections (in Mo. Bot. 



Gard. Herb., 54579, 14832, and 54383 respectively) ; Karner, 



H. D. House, N. Y. State Mus. Herb., 14.189, 14.203, 14.204, 



and an unnumbered collection (in Mo. Bot. Gard. Herb., 



44723, 44724, 44726, 54381 respectively); Ithaca, G. F. 



Atkinson, 29, 9238 (in Cornell Univ. Herb.). 

 New Jersey: Newfield, J. B. Ellis, 3425, cotype of Coniophora 



Cookei (in N. Y. Bot. Gard. Herb.) and the specimen in 



Ell. & Ev., Fungi Col., 1306. 

 Pennsylvania: Carbondale, E. A. Burt. 

 North Carolina : Biltmore, E. Bartholomew, 5659 (in Mo. Bot. 



Gard. Herb., 44269). 

 Louisiana: St. Martinville, A. B. Langlois, cz. 



