The Botany of Iceland - 01.12.1941, Blaðsíða 27

STUDIES IN THE LARGER FUNGI OF IGELAND
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79. *A. vaginata (Bulliard) Roze, var. fungites Batsch. J. E. Lange, Fl..
Agar. Dan., vol. I, t. 6, f. D.
Laugarvatn, 5.VIII.1935, numerous In a birch copse.
The whole plant almost pure white.
Spores white, globose, 10—12 M in diam. Plate, fig. 51.
Lepiota Fries.
80. *L. amianthina Scopoli, Carn. II, p. 434. J. E. Lange, Fl. Agar. Dan.,.
vol. I, t. 15, f. C.
Vestmannaeyjar, 9.VIII.1935. Among grass on a mountain slope. Blönduós 14.
VII. 1937. In a ditch.
Cap 2)4(—4(4) cm broad, somewhat convex, ochraceous-yellowish; surface of
cap and stipe granulate. Stipe yellowish, peronate, above the ring mealy-striate. Gills
free or with a decurrent tooth.
Spores white, oval, 6—7 X 3—3.5 M■ Basidia 4-spored. Cystidia 0. Plate,.
fig. 53.
The specimens from Blönduós were very large and provided with a luxuriant
granulate coating.
Armillaria Fries.
81. *A. mellea (Vahl in Flora Danica, t. 1013) Fries. J. E. Lange, Fl. Agar.
Dan., vol. I, t. 15, f. A.
Laugarvatn, 5.VIII.1935. In birch copses on and around trees and stumps.
Cap 5—7 cm broad, at first convex and slightly umbonate, then somewhat:
depressed, margin striate, a dirty honey yellow, covered with yellow, hairlike, erect
scales which become blackish brown. Stipe large, sulcate, at last hollow, bearing
above a large, swollen ring with rimose margin and yellow flocci. Gills rather distant,
broad, adnate or somewhat emarginate with a decurrent tooth, pale, becoming
brownish-fleshcolour.
Spores white, roundish-ovate, 7.5—8.5 X 5.5—6.5 M- Plate, fig. 52.
Pholiota Fries.
82. Ph. praeCOX (Persoon) Fries, Hym. Eur., p. 217. J. E. Lange, Fl. Agar.
Dan., vol. III, t. 106, f. G. Poul Larsen, Fungi of Iceland, p. 542, no. 550.
Hallormstaður, 22.VII.1935. In a birch copse. Blönduós, 14.VII.1937. In a
homefield.
83. Ph. mutabilis (Schaeffer) Fries, Syst. Myc. I, p. 245. Poul Larsen, Fungi
of Iceland, p. 542, no. 551. J. E. Lange, Fl. Agar. Dan., vol. III, t. 110, f. A.
Vaglaskógur, 23.VII.1935. Grows in clustres on stumps in birch copses.
Spores ovate ellipsoid, 6—7 X 4—4.5 M ■ Plate, fig. 54.
84. Ph. marginata (Batsch) (?) Fries, Hym. Eur., p. 225. Poul Larsen, Fungi
of Iceland, p. 542, no. 552.
Akureyri, 2.VIII.1935. Hallormstaðir, 22.VII.1935. Garður, 30.VII.1935. Laugar
at Breiðamýri, 27.VII.1935. Reykir at Hrútafjörður, 3.VIII.1935. On peaty, damp
soil, in meadows and bogs.
Spores broadly ellipsoidal, slightly punctate, 10—11 X 5.5—6.5 M■ Plate,.
figs. 55 and 56.