The Botany of Iceland - 01.12.1941, Page 31

STUDIES IN THE LARGER FUNGI OF ICELAND
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101. *P. sphinctrinus Fries, Epicr., p. 235. Konrad et Maublanc, Icon. sel.
fung., t. 50, P. sphinctrinus (Fries) Quélet.
Brekka, 21.VII.1935. Lón, 26.VII.1935. Skútustaðir, 28.VII.1935. Laugar at
Breiðamýri, 27.VII.1935. Laugarvatn, 5.VIII.1935. On cow- and horsedung.
Cap parabolic-ovate-campanulate, 1—2 cm broad, edge white appendiculate,
grey to fuliginous blackish (i 3—c4), slightly hygrophanous, when dry paler. Stipe
4—7 cm high, íyí—2/a mm thick, fuliginous-grey, smooth, pruinose above. Gills
lanceolate, adnate, at first greyish with white spots, at last black with white edge.
Spores lemon-shaped, blackish, germ pore distinct, 14—16 X 10—11.5 JU.
Basidia 4-spored. Plate, fig. 67.
Cystidia cylindric-clavate, wavy, 30—50 X 5—9 jU.
102. P. fimicola Fries, Syst. Myc. I, p. 301. Poul Larsen, Fungi of Iceland,
p. 548, no. 571. J. E. Lange, Fl. Agar. Dan., vol. IV, t. 150, f. F.
Akureyri, 2.VIII.1935 Hallormstaður, 22.VII.1935. On dung.
Spores lemon-shaped, dark grey, 11—14 X 8.5 JU. Plate, fig. 69.
103. P. fimicola Fries, var. ater J. E. Lange, Dansk bot. Arkiv, vol. 9, no. 1,
p. 23. Fl. Agar. Dan., vol. IV, t. 150, f. G.
Tálknafjörður, 11.VII. 1935. On horse dung.
104. *P. subbalteatus Berk. et Br. n. 923. Fries, Hym. Eur., p. 312. J. E.
Lange, Fl. Agar. Dan., vol. IV, t. 149, f. H.
Brekka, 21.VII.1935. Lindabrekka, 26.VII.1935. Akureyri, 2.VIII.1935. On
cow-dung.
Cap 2—3 cm broad, campanulate-convex, then expanding and somewhat
umbonate, hygrophanous, when moist rufous-brown, when dry clay with a rubescent
tinge, the umbo yellowish-brown, but long retaining a small, light red-greyish
marginal zone. Stipe c. 7 cm X 2 /a—4 mm, pale clay-brownish rubescent, pruinate
above. Gills slightly adnate, moderately broad, somewhat fleshcoloured when young,
becoming more brown with edge and at last almost black.
Spores broadly limoniform, 14—18 X 10—11 /(, impellucid, blackish. Cystidia
obtuse, hair-shaped to club-shaped, 6—7 JU broad at apex. Plate, fig. 68.
105. *P. foenisecii (Persoon) Schroeter. J. E. Lange, Fl. Agar. Dan., vol. IV,
t. 150, f. C.
Reykjavík, 7.VIII.1935. Among grass in a garden. Blönduós, 14.VII.1935. In a
homefield.
Cap 1—2 cm broad, campanulate to convex, obtuse, dull dusky brown, drying
fuscous-clay or slightly rubescent, but long retaining a dark marginal belt; edge
naked. Stipe 3—5 cm X 2—2/i mm, paler than the cap, equal, naked, paler above.
Gills tapering towards the stipe, motley when young and pale brownish, becoming
fuscous brownish.
Spores narrowly limoniform, 12—15 X 7—8.5 JU, somewhat rough, transparent,
dull brownish.
Psilocybe Fries.
106. P. atrorufa (Schaeffer) Fries, Syst. Myc. I, p. 293. Poul Larsen, Fungi
of Iceland, p. 548, no. 573. J. E. Lange, Fl. Agar. Dan., vol. IV, t. 149, f. C.
Nes in Fnjóskadalur, 23.VII.1937. In a homefield.
Spores ovate-broadly ovate, 7 X 4—4.5 JU. Plate, fig. 70.