Full resolution (JPEG) - On this page / på denna sida - Sidor ...
<< prev. page << föreg. sida << >> nästa sida >> next page >>
Below is the raw OCR text
from the above scanned image.
Do you see an error? Proofread the page now!
Här nedan syns maskintolkade texten från faksimilbilden ovan.
Ser du något fel? Korrekturläs sidan nu!
This page has never been proofread. / Denna sida har aldrig korrekturlästs.
(689
violaceus). Pol. purpureiis Rostk. 27, t. 3, cited under Pol. violaceusr
is, however, no doubt anolher plant growing ön Fagus. Pol.
hae-matodus grows only ön pine as far as I know.
Polyporus medulla panis.
What plant was respected hy the original founder of the name
»medulla panis» will probably remain unknown. I doubt, however,
that is was the species so named be Persoon, as the name is not
appropriate as understood by hirn. It is also an open question
what Fries ment with that name, though he refers to specimens
determined by Persoon, as the only specimen signed by Fries
in bis herbarium (from which the ligure in Icon. sel. t. 190 f. 2 is
made) belongs to another species and most probably to another
section. There is no doubt, however, tliat Persoon’s plant occurs
in Sweden. I have collected it at least four times, viz. at Femsjö
(Hägnen), at Tyresö in Södermanland, at Adö in Mälaren, and at
Flottsund near Uppsala. In all these places it grew ön olcl stubs
of oak. A specimen in Karsten’s herbarium referred by Fries to
Pol. medulla panis belongs to Trametes radiciperda grown ön pine
as usually. And in fact Persoon’s Pol. medulla panis is sometimes
so like the resupinate State of that species that I at first referred
thither the collection from Femsjö and only wondered that it grew
ön oak and that it was möre purely white than usually. The two
species are decidedly distinct, however, and even not closely allied
to each other as will be seen wlien comparing their spores. — By
this opportunity I may say that we are not entitled to boast if we,
when using a modern microscope, are able to see that the old
authors often made mistakes. Without this divining-rod it is
ex-ceedingly difficult in many instances to avoid confusion and even
with the use of it we are not seldom liable to be the victims of
wrong opinions.
Polyporus mollis.
Persoon’s expression »poris subflexuosis» in the description of
Boletus mollis and the fact that Fries at first referred this species
to the genus Daedalea and also in his last work keeps the
charac-ter »poris flexuosis» might possibly raise doubt as to whether the
plant I refer to Pol. mollis be the true one, as I have found the-
<< prev. page << föreg. sida << >> nästa sida >> next page >>
