The Botany of Iceland - 01.12.1941, Qupperneq 16

200
M. P. CHRISTIANSEN
thick, cylindrical, stuffed, orange-yellow to yellow, white below, striate. Gills broad,
free, at first almost white, becoming yellow to orange-yellow.
Spores white, cylindric-ovate, c. 8 X 4.5 /í. Basidia 4-spored. (J.E.L.: Basidia
2-spored, spores 10.5—12 X 6.25—6.75 /t). Plate, fig. 7.
10. *H. puniceus Fries, Epicr. p. 331, f. minor, n. f.
Skútustaðir, 28.VII.1935. Nes in Fnjóskadalur, 27.VII.1937. Laugarvatn, 5.VIII.
1935. Vestmannaeyjar, 9.VIII.1935. Among grass in homefields, outfields and lava-
fields.
Cap 2—4 cm broad, convex, or convex with broad, obtuse umbo and somewhat
incurved margin, red to yellow-red (j 8—1 8—1 7), pellucidly yellow-striate. Flesh
lemon-coloured, but red below the pellicle. Stipe cylindrical, hollow, orange-coloured
above (17), then citrine (13), white below, fibrillose-lacerate. Gills ventricous, taper-
ing towards the stipe, free, yellow-orange, margin denticulate.
Spores white, ovate-oblong, 11.2 X 5.5 JU (Nes) or 8—9 X 4 /u (Laugarvatn,
sporepowder dry). Plate, figs. 6 and 8.
11. *H. spadiceus (Scopoli) Fries, Epicr. p. 332. Hym. Eur. p. 420. Icon.
t. 168, f. 1.
Reykir at Álafoss, 7.VIII. 1935. Among grass in a homefield, grows in fairy-rings.
Cap 2—6 cm broad, at first conical, then somewhat expanded, umbonate and
with wavy or somewhat lobed margin, at first dark brown to black (c 2), then brown
with a reddish lustre (umbo c 2, margin c 3—g8—hl). Stipe 3—5 cm high,
6—12 mm thick, cylindrical, at first white to pale yellowish, with age darker yellow
and with an orange tinge, white below. Gills white, becoming yellow-orange, rather
distant, ventricous, free, margin denticulate.
Spores white, elliptical, 10—12 X 6—7 /J (Sacc.).
12. *H. psittacinus Fries, Hym. Eur., p. 420. J. E. Lange, Fl. Agar. Dan.,
vol. V, t. 168, f. D.
Laugarvatn, 5.VIII.1935. Among grass in a birch copse.
Cap 1—2 cm broad, campanulate, very glutinous, at first green, becoming yellow
or white. Stipe slimy, hollow, top parrot-green. Gills emarginate, distant, dark yellow
with a greenish lustre.
Spores white, oval ovate, 8 X 5.5 /í (J. E. Lange).
13. H. miniatus Fries, Hym. Eur., p. 418. Poul Larsen, Fungi of Iceland,
p. 522, no. 479. J. E. Lange, Fl. Agar. Dan., vol. V, t. 166, f. F.
Garður-Grænavatn near Mývatn, 30.VII.1935. Among grass in a moist meadow.
14. H. niveus (Scopoli) Fries, Hym. Eur., p. 414. Poul Larsen, Fungi of Ice-
land, p. 523, no. 481. J. E. Lange, Fl. Agar. Dan., vol. V, t. 164, f. F.
Skútustaðir, 28.VII.1935. Among grass in a homefield.
Agaricaceae.
Clitocybe Fries.
15. C. odora (Bulliard) Fries, Hym. Eur., p. 85. J. E. Lange, Fl. Agar. Dan.,
vol. I, t. 34, f. A.
Laugarvatn, 5.VIII.1935. Under birches. Spores ovate elliptical, 6—7 X 3 JU ;
plate, fig. 9.