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Polyporus chioneus Fr. Common on birch logs and on fallen or 
dead limbs. P. albellus Pk. is considered the same by some 
authors. Lloyd says it is not the true P. chioneus of Fries. 
Polyporus circinatus Fr. Under spruce and balsam, on the 
ground; sometimes intergrown with Lycopodium among which it 
may be growing. The pileus is rarely 15 cm broad, more commonly 
smaller. 
Polyporus elegans Fr. On decaying logs. 
Polyporus galactinus Berk. On logs and fallen branches of spruce 
and on sticks of other wood. ‘This was at first thought to be 
P. borealis, but that species was not discovered in this locality. 
Polyporus gilvus Fr. On an alder trunk. 
Polyporus glomeratus Pk. On log of some deciduous tree. The 
greenish color when fresh is distinctive. It is at first resupinate and 
widely spread and when dry may be passed over as a young 
P. adustus; the greenish color disappears. 
Polyporus guttulatus Pk. On some conifer logs and a white pine 
stump. 
Polyporus intybaceus Fr. On stump of tamarack tree. The spores 
measure 5-6 by 2-3 microns. The specimen had only three pileoli, 
each 3-5 inches broad, on an extended, connate stipe about 5 inches 
long. According to Saccardo it is normally very much branched 
with numerous pilei. 
Polyporus nidulans Fr. On wood, probably maple. Infrequent. 
Polyporus picipes Fr. Common on decaying logs. 
Polyporus pubescens Fr. Common on birch, willow, alder ete. 
Polyporus radiatus Fr. On birch; frequent. The pore surface of 
the fresh plant is mostly smoky gray (Ridg.). Pileus sometimes 
with a golden yellow margin. P. aureonitens Pat. et Pk. is 
probably the same, as the colors vary considerably even on the same 
branch. 
Polyporus schweinitzii Fr. On white pine and spruce logs and 
stumps. Frequent. 
Polyporus spumeus Fr. On ash logs. This white species is re- 
duced to a small size when dried and then becomes dingy yellowish 
brown. 
Polyporus sulphurens Fr. On trunks and logs of deciduous trees. 
Polyporus weinmanni Fr. On decaying conifer logs. 
Polystictus hirsutus Fr. On dead wood of deciduous trees. 
Polystictus perennis Fr. In open ground or clearings. 
Polystictus velutinus Fr. On dead beech limbs. Much like 
P. pubescens, but thinner, more zonate, not so radiately 
