1917] 
BURT—THELEPHORACEAE OF NORTH AMERICA. VIII 245 
Coniophora arida, although frequently confused with C. 
cerebella, 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 2-4 y in 
diameter, finer, thinner-walled and often collapsed, and more 
loosely interwoven than those of C. cerebella. C. arida and 
C. cerebella are both important timber destroyers. 
Specimens examined: 
Exsiecati: Cooke, Fungi Brit., ed. 2, 11, under the name 
Thelephora puteana; Ell. & Ev., Fungi Col, 1306, under 
the name Coniophora Ellisii; Romell, Fungi Exs. Scand., 
37a and b. 
Sweden: Femsjó, E. Fries, type (in Herb. Fries) ; L. Romell, 
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. Н. 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, 
Н. 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 
Cooke: (in N. Y. Bot. Gard. Herb.) and the specimen in 
Ell. & Ev., Fungi Col., 1306. 
Pennsylvania: Carbondale, E. А. Burt. 
North Carolina: Biltmore, E. Bartholomew, 5659 (in Mo. Bot. 
Gard. Herb., 44269). 
Louisiana: St. Martinville, А. В. Langlois, cz. 
