BOLETI OF THE UNITED STATES 159 
separates into more or less prominent and often angular or 
pyramidal scales, especially on the disk. When young the 
hymenium is concealed by the floccose whitish veil. oletus 
contferus, B. echinatus and B. sguarrosus Pers., are synonyms 
of this species. In the description of the last one, Persoon 
says, ‘“‘the long whitish tubes adhere quite firmly to the 
pileus but are not truly connate with it as in Polyporus,” 
thus noting the essential character of this genus. In some 
specimens the tubes next the stem are much larger and 
more irregular than elsewhere. 
Strobilomyces floccopus Vaut. 
FLOCCOSE-STEMMED BOLETUS 
Syl. Fung. Vol. VI, p. 50. Boletus floccopus, Hym. Eur. p. 513. Boletus 
fioccosus, Syn. Fung. Car. 863. Epicrisis, p. 424 
Pileus convex, soft, covered with an areolate-fasciculate 
squarrose-squamose tomentum, cinereous, at length blackish, 
appendiculate with the silky, thick annular veil; tubes 
shortened behind, their mouths large, whitish-gray; stem 
stout, lacunose above, umber-tomentose below; spores per- 
fectly globose, brown, .00036 in. broad. 
Pileus 4 to 5 in. broad; stem 4 to 5 in. long, 1 in. thick. 
Woods. North Carolina and Pennsylvania, Schweznztz. 
Ohio, Morgan. New York, Peck. 
According to Fries this is a larger and firmer species than 
S. strobzlaceus but manifestly related to it. The New York 
specimens which I have referred to it differ from S. s¢vobzla- 
ceus in no respect except in the tubes being depressed around 
the stem. Unless there are other differences in the European 
plant, it scarcely seems to me to be worthy of specific dis- 
tinction. Loletus floccopus, Rost. tab. 40 is referred to Bole- 
tus scaber, as is B. holopus, Rost. tab. 48. 
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