86 NfeW YORK STATE MUSEUM 



writer's interpretation of Poria laetifica. Specimens of 

 these collections have been deposited in the herbarium at Albany 

 for reference. 



Redescripiion. Widely effused, annual, separable, as much as lo 

 cm broad and long, i to 3 mm thick in fresh specimens, i to 2 mm 

 thick when dry, surrounded by a warm buff to ochraceous buff, 

 sterile, compactly tomentose margin ; subiculum thin but conspicu- 

 ous even in dried plants, light colored; tubes .5 to 1.5 mm long when 

 fresh, not more than i mm long when dry, their mouths orange 

 buff to ochraceous orange when, fresh, dark red or blood red where 

 bruised, orange cinnamon to hazel or often seal brown when dry, 

 subrounded, averaging 4 to 6 to a millimeter when fresh but in 

 dried specimens often collapsing and nearly invisible, the dissepi- 

 ments rather thick walled and entire ; spores allantoid, hyaline, 3.5. 

 to 4.5 X I /i,; cystidia none; trama and subiculum compact, of thin- 

 walled hyphae that are colorless except for the tips that are fre- 

 quently filled with a brownish substance, branched, 2 to 4 ;tt in 

 diameter, often sparingly encrusted with small crystals ; cross walls 

 present but not conspicuous ; clamp connections lacking. 



On rotten wood both of deciduous and of coniferous trees. 



Type locality : South Ballston, N. Y. C. H. Peck. Also collected 

 at Wright's Gap, Center co., Pa., on hemlock wood, September 12, 

 1916; at Musser's Gap, Center co.. Pa., on dead wood. L. O. Over- 

 holts, no. 3431 and no. 2944 respectively. 



Poria macouni (Peck) 



Plate 8, figures 3-6 



Polyporus macouni Peck, Bot. Gaz., 4: i6q. 1879. 



Original description. Effused, irregularly tuberculate, tawny- 

 ferruginous ; pores minute, subrotund, somewhat unequal, the dis- 

 sepiments generally thick and obtuse; spores subglobose, .00025 of 

 an inch in diameter. 



Creeping over and encrusting mosses. Belleville, Ontario. 

 Macoun. 



The species belongs to the section Resitpinati. The specimens 

 indicate that the plant is composed of numerous small unequal and 

 irregular confluent tubercular masses whose porous surface gives 

 them a somewhat spongy appearance. The irregular and uneven 

 surface of the whole mass is probably due mainly to the character 

 of the place of growth. 



