The Botany of Iceland - 01.12.1941, Side 18

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M. P. CHRISTIANSEN
23. O. onisca Fries, Hym. Eur., p. 158. Poul Larsen, Fungi of Iceland, p. 524,
no. 487.
Garður near Mývatn, 30.VII.1935. On peaty and swampy soil among mosses
and sedges. Reykjavík, 8.VIII.1935. On bare soil near a lake.
24. O. umbellifera (Linné) Fries, Hym. Eur., p. 160. Poul Larsen, Fungi of
Iceland, p. 524, no. 488. J. E. Lange, Fl. Agar. Dan., vol. II, t. 60, f. J.
Garður near Mývatn, 30.VII.1935. On peaty and swampy soil among sedges.
Russuliopsis Schroeter.
25. R. laccata (Scopoli) Schroeter, var. rosella (Batsch) f. pUSSÍlla Poul Lar-
sen, Fungi of Iceland, p. 525, no. 490. J. E. Lange, Fl. Agar. Dan., vol. I, t. 40,
f. C. (var. rosella).
Egilstaðir, 18.VII.1935. Hallormstaður, 22.VII.1935. Slúttnes in Mývatn, 29.VII
1935. Laugar at Breiðamýri, 27.VII.1935. Akureyri, 2.VIII.1935. Laugarvatn,
5.VIII.1935. In birch copses and in home- and outfields.
Entoloma Fries.
26. E. sericeum (Bulliard) Fries, Hym. Eur., p. 196. Poul Larsen, Fungi of
Iceland, p. 525, no. 491. J. E. Lange, Fl. Agar. Dan., vol. II, t. 76, f. G.
Lindabrekka, 26.VII.1935. Laugar at Breiðamýri, 27.VII.1937. Garður and
Grænavatn near Mývatn, 30.VII.1935. Slúttnes in Mývatn, 31.VII.1935. Akureyri,
2.VIII.1935. Laugarvatn, 5.VIII.1935. Reykir at Álafoss, 7.VIII.1935. Among grass
in homefields and on grass-covered spots in and around the birch copses.
Spores subspheric, irregularly nodulose-angular, 6.6—8 X 6.4—7.2 /í. Plate,
fig. 14.
27. E. rhodopolium Fries, Agaricus rhodopolius. Fries, Syst. Myc. I, p. 197.
Poul Larsen, Fungi of Iceland, p. 525, no. 492. J. E. Lange, Fl. Agar. Dan., vol. II,
t. 75, f. A.
Laugarvatn, 5.VIII.1935. In birch copses.
Spores irregularly angular, outline subrotund, 7—9 X 7—7.5 JU. Plate, fig. 13.
Leptonia Fries.
28. L. lampropus Fries. Agaricus lampropus Fries, Syst. Myc. I, p. 203. Poul
Larsen, Fungi of Iceland, p. 526, no. 493. J. E. Lange, Fl. Agar. Dan., vol. II,
t. 76, f. C.
Egilstaðir, 19.VII.1935. Brekka 21.VII.1935. Among grass in a meadow.
29. L. serrulata (Persoon) Fries, Hym. Eur., p. 203. Poul Larsen, Fungi of
Iceland, p. 526, no. 494. J. E, Lange, Fl. Agar. Dan., vol. II, t. 77, f. G.
Akureyri, 2.VIII.1935. In a homefield.