1917] 
BURT—MERULIUS IN NORTH AMERICA 323 
to Texas, Michigan to Nebraska, and British Columbia, Wash- 
ington, Mexico, Cuba, and Jamaica. Throughout the year. 
Common. 
The fertile specimens distributed by Krieger in his exsiccati 
agree closely in aspect and structure with immature sterile 
specimens collected by Murrill near Stockholm and are pre- 
sumably M. corium as known by Fries. The specimens dis- 
tributed by Berkeley in his British Fungi, 18, as M. corium, 
have subglobose spores 4 д in diameter апа inerusted hyphae 
and are specifically distinct from the Swedish specimens. For 
this reason I have omitted citation of European synonymy 
and illustrations. Our American collections, when fertile, 
have smaller spores than the Krieger specimens and are 
tomentose rather than villose when broadly reflexed. The 
absence of incrusted hyphae in М. corium affords a simple 
means of distinguishing specimens of M. corium from M. con- 
fluens and M. pallens. 
Specimens examined: 
Exsiceati: Ellis, N. Am. Fungi, 316; Ell. & Ev., Fungi Col., 
1113; Krieger, Fungi Sax., 1957; Ravenel, Fungi Am., 136. 
Sweden: Stockholm, W. A. Murrill (in N. Y. Bot. Gard. 
Herb.). 
Germany: Saxony, Königstein, W. Krieger, in Krieger, 
Fungi Sax., 1957. 
Massachusetts: Murray, comm. by Sprague, 1065 (in Curtis 
Herb.). 
New York: White Plains, L. M. Underwood (in N. Y. Bot. 
Gard. Herb.). 
New Jersey: Newfield, J. B. Ellis, in Ellis, N. Am. Fungi, 
316, and ЕП. 4 Ev., Fungi Col., 1113. 
Distriet of Columbia: Takoma Park, C. L. Shear, 955, 1232. 
South Carolina: Aiken, H. W. Ravenel, in Ravenel, Fungi 
Am., 136; Clemson College, P. H. Rolfs, 1612. 
Florida: New Smyrna, C. G. Lloyd, 2133. 
Alabama: Auburn, Alabama Biological Survey, and F. S. 
Earle, 84 (the latter in N. Y. Bot. Gard. Herb.) ; Montgom- 
ery, R. P. Burke, 95, 128 (in Mo. Bot. Gard. Herb., 22317, 
22619) and 47 (in Lloyd Herb.). 
