≡Aspidella amanitoides (Beeli) E.-J. Gilbert. nom. prov.1941. Not. Amanites (Suppl.): 5. [Name not accepted in the publication. ICBN §34.1a.]
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.
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
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 based on the protolog of the present taxon and the revision of the type by Bas (1969).
from type study of Bas (1969): Basidiomes medium-sized, rather slender.
from type study of Bas (1969): 70 mm wide, dingy white with yellowish stains (especially over disc), planoconvex with slight umbo; context yellowish white, except yellow "in center of cap"; margin non-sulcate; universal veil as complete covering, floccose-pulverulent.
from type study of Bas (1969): free, rather crowded, pale yellowish gray, rather broad; lamellulae irregularly attenuate.
from type study of Bas (1969): 105 × 8 mm, dingy white with yellowish stains, narrowing upward slightly, glabrous except for partial veil remnants; bulb rather abrupt, ventricose-fusiform, slightly rooting, 30 × 22 mm; context solid, yellowish white except orange-yellow "in middle part"; partial veil fugacious; universal veil absent.
from type study of Bas (1969): Odor not recorded. Taste bitter.
from type study of Bas (1969): [lacking distinct separation into sub- and suprapellis; ]filamentous hyphae 2 - 7 μm wide, interwoven, not or hardly gelatinized near surface, golden yellow in alkaline solution; vascular hyphae scant.
from type study of Bas (1969): bilateral; "with elongate elements up to 30 μm wide."
from type study of Bas (1969): "difficult to study." [Note: Probably not rehydratable."—ed.]
from type study of Bas (1969): 39 - 42 × 9 - 10 μm (few measurable), 4-sterigmate; clamps lacking.
from type study of Bas (1969): On pileus: elements irregularly arranged or with "slight(?)" tendency to anticlinal orientation, golden yellow in alkaline solution; filamentous hyphae 2 - 8 μm wide, interwoven, generally scarce, most abundant near pileipellis; inflated cells dominating, predominantly ellipsoid, more rarely subglobose or clavate or elongate or irregularly shaped, 25 - 60 × 20 - 50 μm, terminal singly or in branching chains; vascular hyphae not observed. On stipe: [presumably absent].
from type study of Bas (1969): longitudinally acrophysalidic; filamentous hyphae not described; acrophysalides up to 450 × 55 μm; vascular hyphae scattered; clamps lacking.
from type study of Bas (1969): [20/1/1] (8.5-) 9.0 - 11.0 (-12.0) × 4.5 - 6.0 μm, (Q = 1.60 - 2.30; Q - 1.90 - 1.95), colorless to yellowish, hyaline, thin-walled, amyloid, elongate to cylindric; apiculus not described; contents guttulate to granular; white in deposit.
from type study of Bas (1969): Solitary. Terrestrial in forest.
from type study of Bas (1969): CONGO, DEMOCRATIC REPUBLIC OF: PROV. EQUATEUR—Territoire Lisala - Binga [2°23'41" N/ 20°25'25" E, 361 m], 17.viii.1928 M. Goossens 805 (holotype, BR A2342, dried fragments, probably from more than one specimen, water color drawing).
from type study of Bas (1969): "Many of the microscopical data mentioned above have to be checked carefully in future collections as the tissues of the only specimen studied are difficult to analyze.
"The clampless Amanita amanitoides is placed...in stirps Longipes because of the irregularly arranged, small inflated cells and scarce hyphae in the volva on the cap. Unfortunately the only fruit-body of the type collection is in poor condition. If in the future it turns out that the elements of the volva are arranged in an erect-parallel position, A. amanitoides will have to be placed near...[A. boudieri]...in stirps Polypyramis.
"Amanita amanitoides should be easy to distinguish from both A. longipes and...[A. boudieri]...by its yellow stains, greyish gills, bitter taste, and smaller spores."
RET: There is a possibility that this species may be found without yellowish or orange-yellow staining of the context. Several taxa that have been reported to be yellow-staining have proven to have this property only when they appear to be diseased for several other reasons. See, for example, Amanita subsolitaria for a discussion of the yellowing syndrome.
—R. E. Tulloss
Information to support the viewer in reading the content of "technical" tabs
can be found here.
"African False Lepiota Lepidella"
1. Amanita amanitoides, Republic of Congo.
Dr. C. Bas (1969) (reproduced by courtesy of Persoonia, Leiden,
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.