Il8 NEW YORK STATE MUSEUM 



Few cross walls and clamp connections are recognizable on these 

 hyphae. The hyphae of the sterile margin and subiculum are 

 somewhat different, being long and straight, simple or infre- 

 quently branched, and with abundant and conspicuous clamp con- 

 nections (plate 22, figure 3). Cross walls are apparent only where 

 clamp connections are present. The diameter of both types of 

 hyphae is quite small, up to 2.5 /m. 



In general appearance the species bears some resemblance to 

 P o r i a semitincta and to resupinate forms of Poly- 

 p o r u s semipileatus Peck. But from both it differs in 

 the much smaller diameter of the hyphae, and from the former 

 also in the considerably smaller tubes. 



Redescription. Effused for several centimeters, annual, sep- 

 arable (?), very thin, light of color, with a narrow, sterile pubes- 

 cent, white margin at least when young; subiculum very thin and 

 inconspicuous, white; tubes up to .75 mm in length, their mouths 

 light buff or pinkish buff, rounded, averaging 5 to 6 to a millimeter, 

 the dissepiments relatively thick, slightly pubescent when young, 

 quite even and entire; spores cylindric or allantoic!, hyaline, 3 to 

 5 x 1 to 2 fi; cystidia none; trama of loosely arranged, hyaline, 

 thin-walled, flexuous hyphae, sometimes branched, cross walls and 

 clamp connections not often apparent; subiculum hyphae straight, 

 simple, with conspicuous clamp connections at the cross walls; 

 diameter of both types 1 to 2.5 /x. 



On dead bark of poplar. 



Type locality: Catskill mountains, N. Y. C. H. Peck. Not 

 otherwise known to the writer. 



Daedalea sulphurella Peck 



Plate 23 



44th Rep't N. Y. State Mus., p. 21. 1891 

 Original description. Resupinate, effused or nodulose, pale 

 sulphur-yellow; pores short, labyrinthiform, the dissepiments often 

 lacerated and irpiciform in the dry plant; spores subglobose or 

 broadly elliptical, .0002 in. long. 



Much decayed wood. Salamanca. September. 

 Mostly very irregular or nodulose, following the irregularities 

 of the wood and encrusting .mosses. It is of a beautiful pale' 

 yellow color when fresh, but it changes to a dull pallid hue whefci 

 dry. 



