The Botany of Iceland - 01.12.1932, Blaðsíða 99

l’UNGI OF ICELAND
547
Stropharia Fries.
566. S. semiglobata (Batsch) Fries, Hym. Eur., p. 287.
Agaricus semiglobatus Batsch, Elenchus fungorum, cont. I, 1786, p. 141.
Möðrudalur, Isafjörður, Þingvellir [P. L.]. — On cow-dung and horse-
dung.
Pileus 2—3 cm broad, hemispherical, pale yellow (1 4), slimy. — Stipe
cylindrical, 3—7 cm tall, 2 mm thick, concolorous — paler at apex —
slimy, with a membranaceous slimy ring. — Gills broad, distant, broadly
adnate, grey, then almost black. inargin plane. — Spores ovoid, germ
pore distinct, at flrst violet, then brown, 15—17X8—9 p. — Cystidia at
edge of gills cylindrically hairshaped with swollen apex.
567. S. coronilla (Bulliard) Fries, Syst. Myc. I, p. 282.
Agaricus coronillus Bulliard, Hist. champ., t. 597.
Iceland’s Horticultural Experimental Station at Akureyri [P. LJ. —
Among grass under birches.
Pileus 3—4 cm hroad, convex, viscid, j'ellow (1 3—1 4), flesh thick,
firm and white. — Stipe cylindrical or somewhat dilated above, white,
sulcate above, bearing a white ring, sulcate on the upper face. — Gills
broad, somewhat ventricose, rounded towards the stipe, narrowly adnate
with a decurrent tooth, at flrst greyish vvliite, then purple-violet (a 5),
edge dentate. — Spores ovoid with a germ pore, brown under the
microscope, 9.5—10X5.5^. — Cystidia at edge of gills cylindrical with
a head-like swelling at the apex.
Annellaria Karsten.
568. A. separata (Linné) Karsten, Hattsvampar I, p. 517.
Agaricus separatus Linné, Flora Suecica, No. 1220.
Möðruvellir [St. St.], Dýrafjörður and Þingej'ri [C. H. OJ, Staðarhraun
[Feddersen], Laugarnes [P. LJ. — On dung, especially cow-dung.
Pileus 3—4 cm broad and high, campanulate, the viscid surface pale
greyish yellow when fresh (k 4) in the dry state k 1. — Stipe erect,
elongate-conical, rigid, pale, with a white raised ring above the middle,
sulcate above the ring, below the ring slimy. — Gills ascending, adnate,
dark brown with lighter spots, then black with a white margin. —
Spore-powder black. Spores hlackish brown, lemon-shaped, 15—20 X
9-11 p.
Note. On the remains of a manure heap at Laugarnes from 100 to 200
fungi occurred within an area of 6 m2. They were unusually large, the
cap up to 1 2cm broad and stipe 20 cm long and 1.5 cm broad below.
Panaeolus Fries.
569. P. papilionaceus (Bulliard) Fries, Epicr., p. 236.
Agaricus papilionaceus Bulliard, 1. c., t. 561, f. 2.