1926] 



BURT THELEPHORACEAE OF NORTH AMERICA. XV 297 



broad leaves at a considerable distance above ground, by having 

 larger hyphae, larger basidia, and the basidia with larger sterig- 

 mata which are more thickened in the lower portion and some- 

 times six to a basidium; the spores are somewhat larger in C 

 vagum also. The examination of the large amount of C. vagum 

 which has come to hand does not afford ground for regarding the 

 collar-like fructifications on small living herbaceous stems as 

 worthy of varietal separation. As common as this species now is 

 in the United States, it is rather surprising that a collection of it 

 under some name has not been found in Herb. Schweinitz. 



Specimens examined: 

 Exsiccati: Ellis, N. Am. Fungi, 330; Ravenel, Fungi Am., 132, 577 



the latter under the name Zygodesmus pannosus. 

 Sweden: Stockholm, L. Romell, 204- 

 Russian Poland : Eichler, comm. by Bresadola, portion of type of 



Corticium botryosum Bres. 

 New Brunswick: Campobello, W. G. Farlow, 3. 

 Canada : J. Macoun, 2, 84, 340. 

 Ontario: Ottawa, J. Macoun, 327. 

 Massachusetts: Brookline, G. R. Lyman, 180; Magnolia, W. G. 



Farlow. 

 New York: Albany, H. D. House & J. Rubinger (in Mo. Bot. 



Gard. Herb., 8734); East Galway, E. A. Burt, 2 collections; 



Ithaca, Van Hook, comm. by G. F. Atkinson, 8092; Karner, 



H. D. House, 14.162, and 3 other collections (in N. Y. State 



Herb, and Mo. Bot. Gard. Herb., 44709, 54349, 55199, 55203) ; 



Tripoli, S. H. Burnham, 13, in part (in Mo. Bot. Gard. Herb., 



54506). 

 New Jersey: Belleplain, C. L. Shear, 1244; Newfield, J. B. Ellis, 



in Ellis, N. Am. Fungi, 330. 

 Pennsylvania: Carbondale, E. A. Burt; Trexlertown, W. Herbst, 



95. 

 Maryland: Takoma Park, C. L. Shear, 1164, 1S34- 

 District of Columbia: Takoma Park, C. L. Shear, 965, 1041 (the 



former in Mo. Bot. Gard. Herb. also). 

 South Carolina: Curtis Herb., 3240, type (in Kew Herb, and in 



Curtis Herb.); Aiken, H. W. Ravenel, in Ravenel, Fungi Am., 



132, 577. 



