L. ROMELL, HYMENOMYCETES OF LAPPLAND. 19 
septate, sed non fibulatae. Basidia 12—20 x 4'/, y.  Sporae 
allantoideae, 4—5 x 1 !/,—1 !/, w. 
On rotten wood of Salix at Nuolja. 
This species is allied to Pol. reticulatus, from which it differs 
by much smaller pores and spores, another color etc. I would 
have referred it to Pol. farinellus, if the authentie specimen 
in the Kew herbarium had not proved to be Pofl. reticulatus. 
P. obducens. 
On Salix at Nuolja and Stordalen. 
Pores stratose, about 5 per mm. Spores subglobose, 1- 
guttate, 4 » diam. Cystidia with incrustated top of 12—15 
x9—15 u. or, when the crust is removed, only 4'/,—7 v. broad. 
Hyphae 3 v. broad, not fibulate. 
P. obliquus. 
On Betula at Bjórkliden, Nuolja, Stordalen and Kalixfors. 
Spore powder sulphurous. Spores obovate, often 1-guttate, 
att Xo —/ tt 
P. pallescens Karst. — Fig. 5. 
On rotten trunks of Betula at Björkliden, Nuolja, Palno- 
viken and Torneträsk (one specimen covering the hymenium 
of Pol. fomentarius), and on a rotten trunk of Pinus silvestris 
at Kalixfors. 
Lentus, nune totus resupinatus, usque ad 8 cm. vel ultra 
effusus, cum subiculo tenui 1—4 mm. crassus, margine tenui, 
byssino, subsericeo vel nudo adpresso vel adnato, nunc breviter 
(1—10 mm.) reflexus, albus, exsiccatus albidus, in cremeum 
vel dilute ochraceum vergens, vel interdum quasi sordidus. 
Pori laeves, glabri, angulati, 5—6 per mm., dissepimentis tenui- 
bus. Sporae ellipsoidex, 2-guttatae, 3—4x1'/,—2 u. Hy- 
phae lentae, subsimplices, non fibulatae, hymeniales 2—3 v, 
subiculi 3—4 !/, v. latae, membrana incrassata. 
Distinguished from Pol. euporus by lack of cystidia, no 
reddish tint, rather smaller spores etc. 
KARSTEN, who has found this plant at Mustiala in Finland, 
growing on the hymenium of Polyp. fomentarius, refers it to 
Pol. pallescens, His other collections so named belong to Pol. 
velutinus, as also FucKEL’s plant in Fungi rhen. 1379. — It is 
not Pol. pallescens of FRIES, which seems to be identical with 
