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Svensk Botanisk Tidskrift. 1912. Bd 6, h. 3.
REMARKS ÖN SOME SPECIES OF THE GENUS
POLYPORUS
BY
LARS ROMELL
As well known Elias Fries detected and described a large
num-ber of new species, some of which are so rare that nobody seenis
lo have found them again.
Ön the other hand there occur some species which do not
agree fully with any of the published descriptions. In some
in-stances such incongruity may be due to variations. In other
in-stances, when the description of a species which has not been
re-found agrees exactly in the most poinls and differs only in one
point, there may be reason to suspect that the difference be owing
to misprint or other error. I think, however, that such
supposition should be admitted onlv in extraordinarv cases and with the
utmost care and not before the region, where the described
species was found, is thoroughly searched through.
At this occasion I will comment a little upon some such or eise
interesting species of Polgporus and publish two new names.
For easy reference I will take the species in alphabetical order.
Polyporus albidus.
lf I have interpreted this species correctly, it is rather common
in Sweden. It grows preferably ön standing subrecent stubs of
Abies (rarely ön Pinus), sometimes even ön living trees. It is
pu-rely white (at least below and within) and has smaller size and
smaller pores than Pol. borealis and does not occur so frequently
and so abundantly as that species.
I would not doubl that it be the true Pol. albidus of Fries, if
there where not two other species to which it can be referred
with about the same probability, viz. Pol. acidulus and Pol. trå-
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