The Botany of Iceland - 01.12.1932, Blaðsíða 85

FUNGI OF ICELAND
533
pierced, with a frayed ring like a Telamonia, above the ring yellow (1 4)
and mealy, below ring of the colour k 2, towards the base sulcate and
dilated. — Gills broad, emarginate, cinnamon, with yellow frayed edge.
— Spores brown, smooth, ellipsoidal, the greater part 8—9X5 /u, a few
10—11X5.5 [u and very few 7X4.5 /u. No coronate cystidia, but edge
of gills densely beset with vesiculously inílated cells, some of which con-
tain a yellow juice.
Allied to I. dulcamara, but distinguished by form and colour.
519. I. fastigiata (Schaetfer) Fries, Epicr., p. 174. Schaeffer Fung.
Icon., t. 26.
Egilsstaðir [P. L.].
Pileus 4-6 cm broad, at íirst conical, then expanded with a con-
spicuous umbo, cuticle radiately íibrillose and rimose except in the centre
where it is entire and even, colour of margin 12 to k 2, colour of the
umbo k 3 to f 8. Flesh nearly white. Stipe cylindrical or somewhat
attenuated at apex, stuffed, pale, fibrillose-lacerate. Gills rounded towards
stipe, narrowly adnate or nearly free, greyish yellow, then olivaceous,
edge of gills dentate-fimbriate at length nearly even. — Spores brown.
smootli, broadly ellipsoidal or ovate, a few reniform, as a rule 2-guttu-
late, 11—12 X 6.5—8 fi (a very few up to 15 X 7.8 /u.) No coronate
cystidia, but numerous thick-walled, clavate or fusiform cells at the edge
of the gills.
520. I. calamistrata Fries, Syst. Myc. I, p. 256.
Seyðisfjörður, Lagarfljótsdalur, Laxárdalur, Akureyri [P. L.]. — In
littoral fields, sandy meadows, and outfields.
Pileus 2—4 cm broad, campanulate, somewhat hygrophanous, densely
covered with squarrose scales, when moist the coiour of the pileus is f 6,
when dry f 8. A similar change takes place
in the colour of the flesh, which is a
pale greenish bluc wlien moist (a 8), when
dry l) 8. When crushed the flesh colours
red (n 7). — Stipe cylindrical, 2—4 cm high,
3—4mm thick, occasionally flexuose, mealy
above, otherwise densely squamulose and
brown, at base strongly blue-green. —
Gills broad, deeply emarginate, decurrent
by a tooth, edge of gills flmbriate and
thick, colour at first pale brown, then
rusty. — Spores broadly ellipsoidal or
ovoid, sligthly curved, smooth, brown, 1- to 3-guttulate, 10—16.5X6—8 fi.
No coronate cystidia, but tlie edge of gills closely beset with clavate,
swollen cells.
521. I. dulcamara, f. autumnalis (Albertini et Schweinitz) F'ries, Hym.
Eur., p. 228.
Hallormstaðir, Mwatn, Reykjadalur, Ljósavatn and Akureyri [P. L.].
— Common in as well as outside birch copses among mosses and grass.