Amanita angustilamellata - Amanitaceae.org - Taxonomy and Morphology of Amanita and Limacella

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name	Amanita angustilamellata
name status	nomen acceptum
author	(Höhn.) Boedijn
english name	"von Höhnel's Ringless Amanita"
images	1. Amanita angustilamellata, drawing with type collection (FH), from Tjibodas, Java, Indonesia. 2. Amanita angustilamellata, Singapore. 3. Amanita angustilamellata, Singapore.
intro	The following is based on the description by Boedijn (1951) and the original description by von Höhnel (1914. Sitzungsber. Kaiserl. Akad. Wiss. Wien, Math.-Naturwiss. Kl., Abt. I 123: 74).
cap	The cap of A. angustilamellata is 40 - 90 mm wide, smoke brown, darkest in the center (original description) or gray, darkest in the center about "drab", gradually fading to light drab to smoky-gray towards the margin (Boedijn), convex to plano-convex, sometimes with a slightly subumbonate, matte, with a sulcate-striate margin (about 50% of the radius). The volva is either absent or present as a few large, white patches. The flesh is thin, white, 2 - 3 mm thick over the stem, and rapidly thinning toward the margin.
gills	The gills are free, white or about pale pinkish buff, 3 - 7 mm broad in the middle.
stem	The stem is 90 - 125 × 7 - 15 mm, narrowing upward, dirty white to whitish, hollow, nearly smooth, with some indistinct dark fibrils near the base. The diameter of the stuffed part of the stem is up to 11 mm wide. The saccate volva is attached to the stem only at the base and 45 -51 × 12- 14 mm.
spores	The spores measure 9 - 12 µm in length and are globose according to Boedijn. According to Corner and Bas (1962) the spores from Singapore material measured 11 - 13 (-15) µm and are "globulose" and inamyloid. Z. L. Yang's unpublished study of the type (Farlow Herbarium) yielded these measurements: 11.0 - 14.0 (-15.0) × (10.0-) 10.5 - 13.0 (-14.5) µm, globose to subglobose. Yang (1997) reported the following spore data from southwestern Chinese material: (9.0-) 9.5 - 11.0 (-12.0) × (8.0-) 9.5 - 10.5 (-11.5) µm, globose or (infrequently) subglobose and inamyloid. Yang reports that clamps are absent at bases of basidia.
discussion	This species was originally described from Java (Indonesia) and has since then been reported from Singapore, Sri Lanka, Thailand, and southwestern China (Yang). Variations in spore measurements suggest that not all the material studied falls into a single species. However, sample sizes are so small that no conclusion can be drawn.—R. E. Tulloss
brief editors	RET

name

Amanita angustilamellata

author

(Höhn.) Boedijn. 1951. Sydowia 5: 318, fig. 1(2).

name status

nomen acceptum

english name

"von Höhnel's Ringless Amanita"

synonyms

≡Amanitopsis vaginata var. angustilamellata Höhn. 1914. Sitzungsber. Kaiserl. Akad. Wiss. Wien, Math.-Naturwiss. Kl., Abt. I 123: 74.

non "Amanita angustolamellata Herrfurth" [Never intended as the name of a taxon, provided as a fictitious example only.]

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.

292439, 479210

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



No data available in table

holotypes

in herb. von Höhnel B.2511 => FH

revisions

Corner & Bas. 1962. Persoonia 2: 302, pl. 12a. [Discussion of non-type material.]
Z. L. Yang. 1997. Biblioth. Mycol. 170: 77, figs. 58-59.

intro

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.

NOTE: Spore measurements from papers by Z. L. Yang use his "Times New Roman" face for "Q" and "Q'"—respectively, "Q" and "Q."

basidiospores

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Yang (1997): [30/1/1] (9.0-) 9.5 - 11.0 (-12.0) × (8.0-) 9.5 - 10.5 (-11.5) μm, (Q = 1.0 - 1.05 (-1.13); Q = 1.03 ± 0.03), globose to subglobose, inamyloid, smooth, thin-walled, colorless and hyaline to subcolorless and subhyaline; apiculus ca. 1.0 - 1.5 μm long.

ZLY type study (unpub.): [-/-/-] 11.0 - 14.0 (-15.0) × (10.0-) 10.5 - 13.0 (-14.5) µm, () globose to subglobose.

material examined

ZLY type study (unpub.): INDONESIA: JAVA—Tjibodas, 1908 F. von Höhnel s.n. (holotype, in herb. von Höhnel B.2511 => FH).

citations

—R. E. Tulloss

editors

RET

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name	Amanita angustilamellata
name status	nomen acceptum
author	(Höhn.) Boedijn
english name	"von Höhnel's Ringless Amanita"
images	1. Amanita angustilamellata, drawing with type collection (FH), from Tjibodas, Java, Indonesia. 2. Amanita angustilamellata, Singapore. 3. Amanita angustilamellata, Singapore.
drawing	From von Höhnel's annotations found with the type collection in the Farlow Herbarium.
watercolor	E. J. H. Corner - (2-3), based on the collection on which the interpretation of Corner and Bas was based, reproduced courtesy of Persoonia.

name	Amanita angustilamellata
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name	Amanita angustilamellata
bottom links	[ Keys & Checklists ]

Spore data for collections
provisionally identified as: Amanita angustilamellata (Höhn.) Boedijn

Spore data sets and their composite

Each spore data set is intended to comprise a set of measurements from a single specimen made by a single observer; and explanations prepared for this site talk about specimen-observer pairs associated with each data set. Combining more data into a single data set is non-optimal because it obscures observer differences (which may be valuable for instructional purposes, for example) and may obscure instances in which a single collection inadvertently contains a mixture of taxa.

basidiospore definition

Spore Measurements by Collection

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