20 ARKIV FÖR BOTANIK. BAND ll. w:o 3. 
Pol. fumosus, holmiensis, salignus and scanicus as far as authen- 
tic specimens in the Kew herbarium are concerned. 
It has been found, on the hymenium of Pol. fomentarius 
also at Ratan near Umeå by VLEUGEL, who in Svensk Bot. 
Tidskrift 1908 Bd 2 H. 3 p. 309 mentions it under Pol. vulgaris, 
with forms of which it really has great resemblance. — A spe- 
cimen collected at Bygget in Halland by Lioyp and marked 
09262 may also belong to this species. 
A form of what I suppose to be the same plant but growing 
on Salix at Nuolja was repeatedly found attacked by a dark 
parasitic fungus with 5—10 y.-broad branched hyphae which 
rendered the hymenium more or less dirty or discolored (fus- 
cous, reddish, olivaceous ete.). The specimen found on Pinus 
silvestris at Kalixfors was also contaminated by this parasite. 
P. pannocinctus n. sp. — Fig. 8. 
Resupinatus, adnatus, albidus, cum subiculo distincto, 
molli cire. 1 mm. crassus, margine albo, pannoso, adpresso, 
circ. 2—3 mm. lato cinctus. Hymenium subcremeum, tinctura 
levissima luteovirente (Rep. 10 4 311), saltem in statu sicco, a 
subiculo linea tenui subcornea limitatum.  Pori glabri, minuti, 
6—7 or 5—7 per mm. Hyphae molles, 1—4'/,(—6) y latae, 
ramosae, fibulato-septatae, saepe collapsae. Sporae, hyalinae 
allantoideae, 3—4 '/, xx '/,(—1) t. 
On rotten wood of Betula at Kalixfors. 
As the pore-partitions at last become very thin and pellucid 
one might suspect this plant to be Pol. vitreus. It is, however, 
not Pol. vitreus PERS., as far as can be judged from the poor 
fragments still existing in PERSooN's herbarium, nor Pol. vi- 
treus of KARSTEN (which seems to be identical with his P. pal- 
lescens pr. p.) nor that of BRESADOLA (which looks like a form 
of Pol. vulgaris). What FRIES referred to P. vitreus, it seems 
now impossible to decide, since no authentic specimen exists 
as far as I know. 
P. perennis. 
At Torneträsk station. Only a little, young specimen 
with the hymenium undeveloped. 
P. resinascens n. sp. — Fig. 14. 
On fallen trunks of Populus tremula at Abisko and Jebren- 
jokk. 
