The following is based on the description of Bas (1969).
The cap of Amanita ananaeceps is about 60 - 100 mm wide, probably
convex to plano-convex, with a nonsulcate, appendiculate
margin. The original color was reported by Bas unknown,
but possibly whitish. The cap is covered with small,
conical to shapeless warts. The original description
states the warts are placed on areolae. Bas' opinion was
that this was occasional occurrence due to weather
conditions. His view was supported by the fact that only
one specimen in the type collection appears to have been
The gills are probably crowded and moderately broad.
The stem is about 70 - 110
× 10 - 14 mm, equal or slightly tapering upward, and
exannulate; remnants of volva are lacking or forming a
slight, subfloccose rim at the top of the stipe's bulb,
which is short marginate to submarginate, and napiform to
ellipsoid. The stipe is exannulate or bears a
submembranous-felted, subapical annulus.
The spores measure (9-)
9.5 - 11.5 × (6.5-) 7 - 8 (-8.5) µm and are amyloid and
broadly ellipsoid. Clamps are present at bases of
The species was originally described from Tasmania.
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 text is largely derived from the revision of the type by Bas (1969).
from type study of Bas (1969): "Basidiomes medium to large, rather thickset."
Bas (1969): 60 - 100 mm wide, original color not recorded, probably convex to plano-convex; context not recorded; margin nonsulcate, appendiculate; universal veil as small, about 1.5 - 3 mm wide, conical to shapeless warts, "in one young specimen at centre of cap each wart on a 4 - 6 mm wide, rounded elevation."
Bas (1969): probably crowded and moderately broad.
Bas (1969): about 70 - 110 × 10 - 14 mm, equal or slightly tapering upward, furfuraceous to fibrillose; bulb short to elongate, marginate to submarginate, napiform to ellipsoid; context not recorded; partial veil submembranous, apical, felted, detersile; universal veil lacking or forming slight subfloccose rim at top of bulb or subverrucose zone at top of bulb and base of stipe.
Bas (1969): filamentous hyphae 3 - 5 (-8) μm wide, interwoven, locally with yellowish refractive contents, gelatinized near surface; vascular hyphae present.
Bas (1969): On pileus: filamentous hyphae 3 - 7 μm wide, rather abundant, forming loose net, with branching parts often somewhat inflated or subcoralloid; inflated cells up to 90 × 50 μm, abundant, colorless in alkaline solution, mainly pyriform to clavate, also ellipsoid to globose, terminal singly or in chains, with these chains perhaps in more or less erect position in warts near pileus center.
from type study of Bas (1969): [25/5/1] (9.0-) 9.5 - 11.5 × (6.5-) 7.0 - 8.0 (-8.5) μm, (Q = 1.20 - 1.55; Q = 1.35), somewhat yellowish, thin-walled, amyloid, broadly ellipsoid to elllipsoid; apiculus not described; contents subgranular; color in deposit not recorded.
from type study of Bas (1969): AUSTRALIA:
TASMANIA—Launceston - Launceston, former Penquite Estate (now developed as housing), [41°27' S/ 147°09' E], iii.1846[?] R. C. Gunn 1777 (holotype, K).
from type study of Bas (1969): "Colors are not mentioned either in the protolog or on labels or sheets of type specimens. From Berkeley's comparison with A. nitida we may assume that he probably thought the colors to be whitish.
"The name of this species is somewhat misleading. The wart-like remnants on the cap are not very conspicuous. It is only at the center of the cap of one of the type specimens that these warts occur on rounded elevations of the trama of the cap; the other four caps are practically smooth. I think that these elevations are artificial developing especially when young caps carrying wart-like remnants are poorly dried.
"At first sight the elements in the small warts on the cap appear to be irregularly disposed. It seems, however, that especially in the warts at the center of the cap the rows of cells and elongate elements show a preference for an erect position. In that case A. ananaeceps would take an intermediate position between the bulk of the clamp-bearing species of subsection Solitariae and the small group of clamp-bearing species in which all the elements of the volva seem to be irregularly disposed.
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.