STUDIES ON THE AGARICACEAE OF HOKKAIDO. I

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SANSHI IMAI
duIis, confertis, 3 mm. latis; stipite 3.5-5.5 cm. longo, 3-5 mm. crasso,
subaequali vel sursum liviter attenuato, supra annulam sicco albido,
infra annul am cute viscida flavidula tecto, solido vel farcto; sporis
in cumulo albis, globosis vel subglobosis, 3-4.5.u.
Hab. on the ground in woods. Late summer. Ishikari (Sapporo)
.
Distr. Endemic.
Jap. name. Numeri-karakasatake (n. n.).
The present fungus is closely allied to Lepiota glischra MORG.,
from which it is distinguished by the brighter colored umbonate
pileus. However, it may be only a form of this American species,
and requires further critical studies on the relation between them.
Tribe Armillarieae lMAI, nom. nov.
Fructificatio juvenile vol universali fugacissime veloque partiali
subpersistente tecto. Pileus cum stipite carnosi confluentus et
homogeneus. Lamellae moUes, carnosae,· cum stipite adhaerentes.
Sporae in cumulo albae.
Key to the genera.
1. Partial veil usually remaining as a subpersistent or persistent membranous
annulus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. Armillaria.
2. Partial veil remaining as an arachnoidal, fugacious annulus on the stipe
and as a submembranous veil on the margin of pileus ........... Cortinellus
Armillaria (FR.) QUEL.
Champ. Jura Vosg. I, in Mem. Soc. D'Emu!. Montb. 2 ser. V, 60 & 74,
1872.
Agaricus § Armillaria FR. Syst. Myc. I, 26, 1821.
Armillaria § Armillariella KARST. Hattsv. I, xii, 1879, p. p.
Armillariella KARST. Finl. Basidsv. 45, 1889, p. p.
Gyrophila § Armillaria QUEL. Ench. Fung. 9, 1886.
Mucidula PAT. Hymen. Eur. 95, 1887.
Oudemansiella SPEG. emend. v. HORN. Sitzungsb. Kaiser!. Akad. Wiss. Wien,
CXVII, Aht. I, 1007, 1908; Ibid. CXIX, Aht. 1, 885, 1910, p. p.
Chamaemyces BATT. ex EARLE, Bull. N. Y. Bot. Gard. V, 446. 1909.
Polymyces BATT. ex EARLE, Ibid. 447, 1909.
Sphaerocephalus BATT. ex EARLE, Ibid. 447, 1909.
Calathelasma LOVEJ. Bot. Gaz. L, 383, 1910.