522 POUL LARSEN 
473. P. medulla panis Fries, Saccardo, Syll. fung. VI, p. 295. 
Mödruvellir [St. St... — On beams in a cellar. 
Polyporus Micheli. 
474. P. croceus (Persoon) Fries, Syst. Myc. I, p. 364. 
Hälsskögur [O. D.]. — On Betula pubescens. 
475. P. brumalis (Persoon) Fries. 
Boletus brumalis Persoon, Synops. meth. fung., p. 517. 
Hälsskögur [St. St]; Voglaskögur [O. D.]; Hallormstadir [P. L.j. — On 
stumps and fallen branches of birch. 
Polystictus Fries. 
476. P. hirsutus (Wulfen) Fries. 
Polyporus hirsutus Fries, Syst. Myc. I, p. 367. 
Egilsstadir [P.L.]. — On fallen branches of Betula pubescens. 
477. P. perennis (Linné) Fries. 
Boletus perennis Linné, Flora Suecica, No. 1245. 
Lomagnupur (Buchwald). — On the ground in an Empetrum-Cal- 
luna-heath. 
Hygrophoraceae. 
Hygrophorus Fries. 
478. Hygrophorus conicus (Scopoli) Fries, Hym. Eur., p. 419. 
Myvatn (Grønlund); Akureyri, Reykjavik [C. H. O.); Hallormstadir and 
Skütustadir [P. L.}. — On knolls in outfields and in homefields. 
Cap conical, margin straight, colour 16 and 17, becoming black. 
Flesh thin, yellow, becoming black. Stipe cylindrical, yellow, white 
below, becoming black. Gills broadest anteriorly, nearly free. at first al- 
most white, then yellow, becoming black. Spores white, elongate-ovate, 
9 1A Ooi, 
479. H. miniatus Fries, Hym. Eur., p. 418. 
Egilsstadir (Lagarfljöt) [P.L.]. — Among grass in outfields. 
Cap 1—2 cm broad, convex, orange-red, covered with fine yellow scales 
(projecting hyphz with yellow contents). Stipe cylindrical, stuffed, co- 
loured like the cap, above clad with yellow scales. Gills thick, rather 
distant, broadly adnate, decurrent tooth, yellow to orange. Spores white, 
nearly cylindrical, 8—9X5—5S.5 u. 
480. H. pratensis (Persoon) Fries, Hym. Eur., p. 413. 
Hof in Hörgärdalur [O. D]; Seydisfjördur [P. L.]. 
Cap 3—5 cm broad, flat, gibbose, margin thin, orange-yellow (16). 
Stipe concolorous but paler, cylindrical, thinner below. Gills thick, distant, 
concolorous, strongly decurrent. Spores white, ellipsoidal, 6%4 u. 
