The Botany of Iceland - 01.12.1932, Side 107

FUNGI OF ICELAND
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598. R. Queletii Fries, in Quélet: Les Champ. du Jura, p. 185,
t. 24, f. 6.
Hallormstaðir [P. L.]. — On grassy spots in birch copses. Not rare.
Pileus 5—7 cm broad, plano-convex, margin thin, at length sulcate,
pellicle scarcely viscid, mealy, purple-violet (d 1), centre almost black (c. 3).
— Flesh white, but purple beneath the separable pellicle, at íirst fairly
flrm, then soft, odour none, taste acrid. — Stipe cylindrical, pale purplish
red (m 4), mealy. — Gills pale, becoming greyish white, exuding drops
from the edge of gills when fresh. — Spore powder greyish white, spores
white, subspherical, echinulate 8—9X7—8,«.
Coprinariaceae.
Coprinus (Persoon) Fries.
599. C. velox Godey, in Gillet’s Les champignons de la France,
Hyménomycétes, 1.175.
Seyðisfjörður, Norðtúnga [P. L.]. — On horsedung and cowdung.
Pileus 4 mm broad, skin-like, margin sulcate, centre squamulose or
scurfy, grey. — Stipe 2 cm long, x/2 mm thick, white, base hairy. — Gills
grey, thin, reaching the stem. — Spores ellipsoidal, brown, 8—9X5
600. C. ephemerus (Bulliard) Fries, Epicr., p. 252.
Agaricus ephemerus Bulliard, Hist. champ., t. 128.
Reykjavík and Seyðisfjörður [P. L.]. — On horsedung and cowdung.
Pileus 1—1.5 cm broad, at flrst'ovoid, then expanded with split
raised margin, skin-like, covered with scattered short hairs, greyish yellow
with a brownish centre. — Stipe 3—5 cm long, 1—1.5 mm thick, hollow,
whitish grey, mealy, base liairy. — Spores dark-brown, ellipsoidal, 10—
13X7 /t.
601. C. tigrinellus Boudier, Icones mycologicae, t. 139.
On stems and leaves of dead and living species of Carex in wet
bogs about Þingvallavatn [P. L.].
Pileus at flrsl ovoid with somewhat pointed summit, 1 cm high
and broad, then expanded with revolute split margin, white, but covered
in spots with a dark-grey, mealy layer. — Stipe white, smooth, pellucid,
swollen and lloccose at base. — Gills at lirst white, then dark 2—3 mm
broad, free. — Spores dark-brown, broadly ellipsoidal, 11—15X7—9/1.
602. C. cordisporus Gibbs, in J. E. Lange, Dansk Bot. Ark., Bind 2,
No. 3, 1915, p. 43, pl. I, flg. g.
Seyðisfjörður and Reykjavík [P. L.]. — On horsedung in bogs.
Pileus cylindrical, then ilat and radiately striate-plicate, skin-like,
6—8 mm broad, pale with a yellow centre, covered by a mealy layer
consisting of spherical cells, 20—40 p in diameter. — Stipe 2—3 cm long,