110 



Mycologia 



dustry, and in every field of pure science. The war afforded a 

 convincing demonstration of the dependence of modern nations 

 upon scientific achievement, and nothing is more certain than that 

 the United States will ultimately fall behind in its competition 

 with the other great peoples of the world unless there be per- 

 sistent and energetic effort expended to foster scientific discovery. 



Secretary, National Research Council. 



daedalea extensa rediscovered 



This species was described by Peck in his annual report in 1891 

 as follows : 



" Resupinate, thick, coriaceous, often uneven or somewhat 

 nodulose, the margin at first cottony and white, soon changing to 

 brown, the subiculum slightly rufescent ; pores large, unequal and 

 labyrinthiform, in vertical places oblique, whitish; spores minute, 

 oblong, .00024 to .0003 in. long, .0001 to .00012 broad. 



" Prostrate trunks of deciduous trees. Salamanca. Sep- 

 tember. 



"This forms patches two feet or more in length on the sides 

 and lower surface of the trunk. It follows the inequalities of 

 the surface, and in vertical places it becomes more or less nodu- 

 lose or develops a thick obtuse margin, which is velvety-tomentose 

 and at length dark-brown in color, but I have seen no reflexed 

 margin. It is suggestive of resupinate forms of Trametes mollis, 

 but differs from it in the character of the pores in the thicker 

 subiculum and in the absence of any free margin." 



The type collection is gone and there is nothing left but the 

 description ; but this, like most of Peck's descriptions, is exceed- 

 ingly good. I have a specimen collected a few years ago at 

 Bloomington, Indiana, by Van Hook (2398) on oak and tulip- 

 tree wood. " This fungus," he says, " grew away from the light, 

 spreading over the surfaces of the two kinds of wood where they 

 lay on each other. It may be a Poria, but it looked much like a 

 Daedalea when fresh." 



This specimen corresponds to Peck's description, except that 

 the hymenium is now avellaneous instead of whitish. I have 

 compared it with a number of resupinate specimens of Trametes 

 mollis and find that it differs from them just as Peck said — espe- 



