Amanita eijii

[print] [map]

name	Amanita eijii
name status	nomen acceptum
author	Zhu L. Yang
english name	"Nagasawa's Lepidella"
synonyms	≡Amanita cokeri f. roseitincta Nagas. & Hongo
images	1. Amanita eijii, China. 2. Amanita eijii, China.
cap	The cap of Amanita eijii is 60 - 130 mm wide, convex to applanate, occasionally concave, dry or subviscid, whitish to dirty white, but becoming pinkish to brownish with age over disc. The volval remnants on the cap are pyramidal to subpyramidal or subconical, 1 - 3.5 mm high, dirty white to pinkish or brownish, and randomly arranged. The pileal margin is smooth and appendiculate.
gills	The lamellae are white to cream, and become pinkish when injured.
stem	The stipe is 50 - 130 × 10 - 20 mm, subcylindric or slightly tapering upward. The stem's basal bulb is clavate to ventricose or subfusiform, 10 - 25 mm wide and 30 - 50 mm long. The upper part of bulb and lower part of the stem are usually covered with distinctly reflexed, irregularly or incompletely concentrically arranged, pinkish to brownish squamules. The annulus is subapical and white. The trama is white, but becomes pinkish when cut.
spores	The basidiospores (8.5-) 9.0 - 11.0 (-13.0) × (6.5-) 7.0 - 8.0 (-8.5) µm, amyloid, and broadly ellipsoid to ellipsoid. Clamps are present at bases of basidia.
discussion	Amanita eijii grows in broad-leaved or mixed forests. The taxon was originally described as a forma of A. cokeri from Japan. It is presently known from Japan and China. Amanita eijii is similar to A. cokeri (E.-J. Gilbert & Kühner) E.-J. Gilbert, originally described from southeastern North America, but the latter has a white pileus with white to brownish volval remnants, a white trama of basidiome, more strongly gelatinized pileipellis and significantly larger basidiospores. For a list of other taxa most closely related to A. eijii, see A. cokeri (E.-J. Gilbert & Kühner) E.-J. Gilbert. These taxa are members of Bas' stirps Solitaria.—Zhu L. Yang
brief editors	RET

name

Amanita eijii

author

Zhu L. Yang. 2002. J. Jilin Agric. Univ. 24(2): 32-34, fig. 1(1-3).

name status

nomen acceptum

english name

"Nagasawa's Lepidella"

synonyms

≡Amanita cokeri f. roseitincta Nagas. & Hongo. 1984. Trans. Mycol. Soc. Jap. 25: 373, fig. 4(a-e).

non Amanita roseitincta (Murrill) Murrill

The editors of this site owe a great debt to Dr. Cornelis Bas whose famous cigar box files of Amanita nomenclatural information gathered over three or more decades were made available to RET for computerization and make up the lion's share of the nomenclatural information presented on this site.

MycoBank nos.

505513, 117872

GenBank nos.

Due to delays in data processing at GenBank, some accession numbers may lead to unreleased (pending) pages. These pages will eventually be made live, so try again later.

accession	locus	voucher	source
MK277531	nrLSU	s.d. unkn. coll. s.n. (RET 456-1)	L. Nagy, Agaricales Diversification, Szeged Univ.

holotypes

TMI 7779

selected illustrations

Imazeki and Hongo. 1987. Color. Illus. Mushr. Japan 1: 135, pl. 34 (fig. 234).

intro

The following text may make multiple use of each data field.

The field may contain magenta text presenting data from a type study and/or revision of other original material cited in the protolog of the present taxon. Macroscopic descriptions in magenta are a combination of data from the protolog and additional observations made on the exiccata during revision of the cited original material.

The same field may also contain black text, which is data from a revision of the present taxon (including non-type material and/or material not cited in the protolog). Paragraphs of black text will be labeled if further subdivision of this text is appropriate.

Olive text indicates a specimen that has not been thoroughly examined (for example, for microscopic details) and marks other places in the text where data is missing or uncertain.

The following material is drawn from the protolog of the present species and from (Yang 2002), with some additions from others as noted.

basidiospores

send to graphing tool

from Yang (2002): [147/8/3] (8.5-) 9.0 - 11.0 (-13.0) × (6.5-) 7.0 - 8.0 (-8.5) μm, (Q = (1.15-) 1.21 - 1.47 (-1.73); Q' = 1.36 ± 0.08), hyaline, colorless, smooth, thin-walled, amyloid, broadly ellipsoid to ellipsoid, rarely elongate; apiculus proportionately small; contents not described; color in deposit not described.

composite data from material revised by RET: [30/1/1] (8.6-) 8.7 - 11.0 (-12.0) × 6.5 - 8.3 (-8.5) μm, (L = 9.6 μm; W = 7.2 μm; Q = (1.10-) 1.23 - 1.52 (-1.53); Q = 1.33), subhyaline to hyaline, colorless, smooth, thin-walled, amyloid, broadly ellipsoid to ellipsoid, rarely subglobose, often adaxially flattened; apiculus sublateral, cylindric; contents mono- or multiguttulate or granular; color in deposit not recorded.

ecology

from protolog: Japan: In deciduous hardwood forest with Quercus, Carpinus, Acer, etc. or in Abies-Castanopsis forest.

Yang (2002): Hunan Prov., China: At 1,280 m elev. In broad-leaved or mixed forests.

material examined

from protolog: JAPAN: HONSHU—Tottori-ken - Tottori-shi, Ochidani, 6.viii.1974 E. Nagasawa s.n. (paratype, TMI 3657), 31.viii.1977 E. Nagasawa s.n. (paratype, TIMI 4216), 10.x.1979 E. Nagasawa s.n. (paratype, TMI 7778). Yazu-gun, Funaoka-cho, Ohe, 1.x.1977 E. Nagasawa s.n. (paratype, TMI 4193), 22.vii.1980 S. Murakami s.n. (holotype, TMI 7779).

Yang (2002): CHINA: ANHUI—Huangshan (prefecture level) City - Huangshan Distr., unkn. loc., 30.viii.1957 S. C. Teng 5190 (HMAS 21105). HUNAN—Shaoyang (prefecture level) City - Wugang City, Yunshan [1280 m], 14.viii.1918 H. Handel-Mazzetti 2618a (WU 12465). GUIZHOU—Tongren Prefecture - Jiangkou Co., Fanjingshan, 28.viii.1982 Y. C. Zong & H. A. Wen 239 (HMAS 53957).

RET: JAPAN: UNKN. ISLAND—unkn. prefecture - unkn. loc., s.d. unkn. coll. s.n. [Borovička B 378] (PRM; RET 456-1, nrLSU seq'd.).

discussion

In the following figure, the spore size and shape data of the present species is compared with such data from two species mentioned by Yang (2002: 34)—A. cokeri and A. timida—as well as with the similarly staining A. subcokeri Tulloss nom. prov. from North America and the European A. solitaria. All these taxa are assignable to Amanita [sect. Lepidella subsect. Solitariae] stirps Solitaria.

citations

—R. E. Tulloss

editors

RET

Information to support the viewer in reading the content of "technical" tabs can be found here.

[top]

name	Amanita eijii
bottom links	[ Section Lepidella page. ] [ Amanita Studies home. ] [ Keys & Checklists ]

Spore Measurements by Collection