STUDIES ON THE AGARICACEAE OF HOKKAIDO. I

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SANSHI IMAI
nearly free or adnexed, white then yellowish, moderately crowded;
stipe 3.5-5 cm. long, 3-7 mm. thick, attenuated upward, concolorous,
densely covered, below the annulus, with warts like those of the
pileus and longitudinally sulcate in 2 to 4 lines, dry, brown-fibrillose
above the annulus, hollow; annulus subsuperior, torn asunder into
small pieces, subpendulous, subpersistent, concolorous with the warts;
veil subeoncolorous with warts, subpersistent; spores white in mass,
ellipsoidal, smooth, 4-5.5 x 2.3-3.5 }t.
Hab. on the ground in woods or under trees. Summer to
autumn. Ishikari (Sapporo).
Distr. Japan (Hokkaido, Honshu), Europe and North America.
Jap. name. Hime-onitake (n. n.).
11. Lepiota amianthina (ScoP. ex FR.) KARST.
Hattsv. I, 15, 1879-QUEL. Ench. Fung. 7, 1886-SACC. Syll. Fung.
V, 48, 1887; Fl. Ital. Crypt., Hymen. 84, 1915-BARLA, Champ. Alp. Marit. 30,
pI. 16, f. 9-11, 1889-SCHROET. PiIze Schles. 1, 672, 1889-MASS. Brit. Fung.
FI. III, 249, 1893-W. G. SM. Brit. Basid. 25, 1908-MuRRILL, North Amer.
FI. X, 45, 1914, p. p.-RICKEN, Bliitterp. 327, pI. 81, f. 4, 1915-REA, Brit. Basid.
75, 1922-BRES. Icon. Myc. I, pI. 37, 1927.
Agaricus amianthinus Scop: Fl. Carn. ed. 2, II, 434, 1772 (teste FR.).
Agaricus (Lepiota) granulo8us FR. Syst. Myc. I, 24, 1821, p. p.
Agaricus (Lepiota) granulosus var. amianthinus FR. Epicr. Myc. 18, 1838.
Agaricus (Lepiota) amianthinus FR. Hymen. Eur. 37, 1874-CKE. Ill. Brit.
Fung. pI. 213, f. 2, 1883-WINT. Die Pilze, I, 836, 1884.
Solitary or scattered, edible'. Pileus 2-5 em. broad, convex, then
expanded to gibbous or subumbonate; surface dry, ochraceous, darker
at the center, pulverulent or granulose, radiately rugulose; context
yellowish or yellow, rather thick, odour none; lameUae adnexed,
white, then yellowish,crowded; stipe 2-6 cm. long, 3-5 mm. thick,
slightly attenuated upward or nearly equal, whitish or yellowish and
glabrous above the annulus, densely covered with ochraceous squamules
below the annulus, hollow; annulus concolorous, squamulose
on the outside, median; spores white in mass, ellipsoidal, 6-8 x 3-
4 It, smooth, hyaline; eystidia absent.
Hab. on the ground in woods. Autumn. Ishikari (Mt. Kurodake)
.
Distr. Japan (Hokkaido, Honshu), Europe and North America.
Jap. name. Shiwa-karakasatake (n. n.).