The Botany of Iceland - 01.12.1941, Blaðsíða 22

206
M. P. CHRISTIANSEN
tinged with pale fleshcolour and finally clay-brownish (k 6—g 3) ; margin pale,
somewhat denticulate. Flesh concolorous. Smell slight, of radish.
Sporepowder brownish clay (g 7—h 3). Spores smooth, elipsoid oval, 9—10 X
4.5—5 H, very pale. Cystidia clavate hair-shaped, obtuse, rather short, 40 X 5 /í.
Plate, fig. 22.
Poul Larsen, Fungi of Iceland, 1931, no. 508, H. sp. (H. hiemale Bresadola,
Icon. Myc. XV, Milano 1930, Tab. 715 ?) is evidently synonymous.
47. H. mesophaeum Fries, Epicr., p. 179. Poul Larsen, Fungi of Iceland,
p. 529, no. 509. J. E. Lange, Fl. Agar. Dan., vol. III, t. 119, f. C.
Common on heaths and in birch copses in the areas examined.
Spores ovate, contents minutely granular, 9.5—10 X 5—5.5 JU. Plate, fig. 23.
Inocybe Fries.
48 I. geophylla (Sowerby) Fries, Syst. Myc. I, p. 258. Sowerby, t. 124. Poul
Larsen, Fungi of Iceland, p. 530, no. 511. J. E. Lange, Fl. Agar. Dan., vol. III,
t. 112, f. G.
Vestmannaeyjar, 9.VIII.1935. Among grass and moss on mountain slopes.
Spores smooth, ovoid or ellipsoidal, 8.5—9.5 X 5 JU. Plate, fig. 24.
49. *I. cincinnata Fries, Syst. Myc. I, p. 256. Hym. Eur., p. 228. J. E. Lange,
Fl. Agar. Dan., vol. III, t. 111, f. H.
Egilstaðir, 19.VII. 1935. In outfields.
Cap about 1/t cm broad, obtusely umbonate, bistre-brown, everywhere densely
set with minute, erect, acuminate squamules. Stipe tinged with a violaceous colour
from apex downward, pallid below, thinly covered with fibrillose, brownish flocci.
Gills first pallid, edge brown. Flesh in young cap flushed with violet, especially in
the upper part of the stipe.
Spores obliquely ovate, 9X5/1. Cystidia crested. Plate, fig. 25.
50. I. lacera Fries, Syst. Myc. I, p. 257. Poul Larsen, Fungi of Iceland, p. 530,
no. 513. J. E. Lange, Fl. Agar. Dan., vol. III, t. 111, f. D.
Reykjavík, 6.VII.1935. Among grass in lava fields.
Spores oval cylindric, 12—16 X 6—7 jU ■ Plate, fig. 26.
51. *I. Langei Heim forma major J. E. Lange, Fl. Agar. Dan., vol. III, t. 113,
f. F. (= Poul Larsen, Fungi of Iceland, p. 530, no. 512, I. hirtella Bres.).
Grænavatn near Mývatn, 30.VII.1935. Among grass in moist ground.
Cap 2—4 cm, convex, obtusely umbonate, at first innato-fibrillose, then breaking
up, more or less, especially towards the edge, into small scales, at first very pale
ochre, becoming somewhat deeper ochry with age, especially at the umbo. Stipe
rather short, 2.5—3 cm X 4—6 mm, cylindric or slightly incrassate above, not
distinctly bulbous, white or whitish, very minutely striolate and pruinate, especially
above.
Spores ovate-ellipsoid, 7—8.5 X 4.5—5 ju. Cystidia rather short, 50—55 X
13—16 ju, obtuse, slightly ventricose, crested or not. Plate, fig. 28.
52. *I. hirtella Bres. Fungi tridentini I, p. 52, t. 58, f. 1. J. E. Lange, Fl.
Agar. Dan., vol. III, t. 113, f. G.
Brekka, 20.VII.1935. In a birch copse.
Cap 1—2 cm, slightly conical, soon expanding, not distinctly umbonate, slightly