18 College of Forestry 
Murrill (1915, p. 17) states that Polyporus pargamenus is 
frequent to common on dead wood throughout most of tropi- 
eal North America, including Mexico, Central America, 
southern Florida, the Bermudas, the West Indies, and all 
other islands between North America and South America 
with the exception of Trinidad. Hans and Paul Sydow 
(1907) record it from South America as being among the 
collections of F. Noak made in Brazil. Aceording to Murrill 
(1906, p. 655), Bresadola reports it as beimg common on 
poplar, oak, and basswood in Hungary and considers it cos- 
mopolitan in one or more of its multiplied forms. 
Authentic collections of Polyporus pargamenus have been 
recorded from Spain, France, Germany, Austria-Hungary, 
and Russia in Europe; from Japan, Malay Peninsula, and 
the Philippine Islands in Asia; and from Queensland and 
Victoria in Australia. 
From the foregoing facts it is evident that the distribution 
of Polyporus pargamenus, even though still known but very 
imperfectly, embraces five of the six continents. A detailed 
tabulation of all the more important authentic collections of 
Polyporus pargamenus that the writer has been able to com- 
pile is given in the following pages. In connection with this 
work the specimens in the herbaria of the New York Bo‘an- 
ical Garden, The Pennsylvania State College, the Office of 
Pathological Collections of the U. S. Bureau ae Plant Indus- 
try, and the collections of the Oftice of Investigations in 
Forest Pathology having been examined personally. 
DistrRiBuTION IN NorrH AMERICA. 
CANADA. 
BRITISH COLUMBIA: 
On -. Kamloops, J. Macoun, in June, 1889 (Herb. 
N. Y. Bot. Gard.) ; New Westminster (Herb. N. Y. Bot. Gard.) ; 
Sidney, J. Macoun (Herb. C. G. Lloyd, No. 13089). 
ONTARIO: 
On Populus sp. London, J. Dearness, in August, 1887 (Herb. N. Y 
Bot. Gard.). 
On Quercus rubra. Ontario (Herb. N. Y. Bot. Gard.). 
