HO NEW YORK STATE MUSEUM 



project at all (plate 18, figure 3). As in P. gl o m eratus, they 

 are simply the enlarged pointed ends of special brown hyphae, and 

 in crushed preparations can be traced for considerable distances. 

 Their diameter is 10 to 20 p. In length they often equal the length 

 of the tubes. There are present also small setae of the usual type, 

 between the basidia (plate 18, figure 3a, 8). These are sharp 

 pointed, and have no connection with the large embedded setae. 

 They measure only 30 to 50 by 5 to 7 /*. The hyphae of the trama 

 and subiculum van- considerably. In the trama and the old subicu- 

 lum they are decidedly brown under the microscope and cross walls 

 are rather abundant and easily made out. They are branched at 

 frequent intervals and measure 2 to 4 /x in diameter (plate 18, 

 figure 6). In the subiculum of the growing light-colored margin 

 the hyphae are hyaline, thin-walled, and cross walls are rarely 

 seen. These hyphae are branched, are usually quite flexuous, and 

 the terminal branches frequently taper out to a long narrow point 

 (plate 18, figure 7). The diameter of the larger of these hyphae is 



2 tO 5 fl. 



The relationships and indeed perhaps even the autonomy of the 

 species are open to question. From a study of the type collection the 

 writer obtains no evidence that the species is not simply an unusual 

 species of Poria, but the appearance and other characteristics are 

 unlike those of any other species. 



Redescription. Annual, effused for several centimeters, insepar- 

 able (fide Peck), with a whitish or cream buff sterile margin up to 

 4 mm broad and often beset with the setae described below ; subi- 

 culum brown, 1.5 mm thick, much thicker than the length of the 

 tubes ; tubes very short, their mouths mostly rounded, drab to 

 wood brown or fuscous and sometimes with a grayish pruinosity, 

 averaging about 5 to a millimeter; dissepiments fairly thick, entire; 

 spores ellipsoidal to reniform, hyaline, 3 to 5 x 2 to 3 /x; setae 

 abundant, of two types: large (10 to 20 /n diameter) brown, pointed 

 bodies in the trama, the subiculum, and projecting from the hymen- 

 ial surface; small (30 to 50x5 to 7 /x), pointed, of usual type, 

 between the basidia; trama and subiculum compact, of brown, 

 branched hyphae with many and conspicuous cross walls but no 

 clamp connections, 2 to 4 /x in diameter ; marginal subiculum with 

 hyphae hyaline, branched, no cross walls, branches often tapering to 

 a fine point, no clam]) connections, 2 to 5 /x in diameter. 



On bark of red maple. 



Type locality: Gansevoort, N. Y. C. H. Peck. Not otherwise 

 known to the writer. 



