Murrill : Light-Colored Resupinate Polypores 301 



short, subrotund angular or subflexuous, the dissepiments thin, 

 acute, dentate or slightly lacerate, pale yellow ; spores minute, 

 subglobose, .00008-00012 of an inch broad." 



Described from specimens collected by Peck on much-decayed 

 hemlock wood at Floodwood, New York, August 31, 1900. Ac- 

 cording to Overholts, the spores are ellipsoid, smooth, hyaline, 

 2.5-4x2^; cystidia none; clamp connections abundant. I have 

 a specimen collected by Atkinson in North Carolina which ap- 

 pears to match the type at Albany exactly. Overholts also re- 

 ports it from Frankfort, Michigan, collected on hemlock wood by 

 E. T. Harper. This species should be very carefully compared 

 with Porta semitincta, from which it can scarcely be distinguished 

 when the herbarium specimens are placed side by side. 



31. Poria radiculosa (Peck) Sacc. Syll. Fung. 6: 314. 1888 



Poly poms radiculosus Peck, Bull. N. Y. State Mus. 40 : 54. 1887. 



" Resupinate, effused, thin, soft, tender, orange-yellow, the 

 mycelium creeping in and over the wood, silky-tomentose, at first 

 white, then yellow, forming numerous yellow branching root-like 

 strings or ribs which are more or less connected by a soft, silky 

 tomentum ; pores rather large, angular, at first shallow, sunk in 

 the mycelium, the dissepiments becoming more elevated, thin and 

 fragile; spores ellipsoid, .0002 to .00025 inch long, .00012 to 

 .00016 broad. 



" The species is allied to P. V aillantu, in its peculiar rhizomor- 

 phoid strings of mycelium, but from this it differs decidedly in 

 its color and texture. In these respects it approaches P. bomby- 

 cinus, of which it may possibly be a peculiar variety. It is very 

 destructive to the wood on which it grows, causing it to become 

 soft, brittle and even friable." 



Described as above from specimens collected by Peck at Ganse- 

 voort in September on half-buried aspen chips. I have examined 

 the type at Albany and find it very unsatisfactory. The plate 

 recently published by Mr. Overholts represents it well. Accord- 

 ing to him, the spores are oblong-ellipsoid, 5-7.5x2.5-3^; cys- 

 tidia none. The species will not be satisfactorily known by the 

 present generation of mycologists until rediscovered. 



