The cap of Amanita
ovoidea is 90 - 350 mm wide, white, moist,
hemispheric then convex, with a nonstriate, appendiculate
margin. The flesh is white. The volval remnants are floccose.
The gills are chalk white, narrow, densely serrate, free, ventricose, and with a
"subtly" floccose margin.
The stem is 100 - 150 × 25 - 50 mm,
white, completely floccose, and thickening toward the
base. In the area where one might expect an annulus in
another species, the flocculence is so thick that it has
been described as capable of being spread with a knife
like a soft cheese. The saccate volva is white or reddening.
The spores measure (6.3-) 7.5 - 10.5 (-15.0) × (4.9-) 5.2 - 7.0 (-8.4) µm and are
broadly ellipsoid to ellipsoid to elongate and amyloid.
The species was originally described from France. This species has commonly been
placed in section Amidella, but it differs from
most of the species in the section that are known to me.
The type species of the section is A. volvata (Peck) Lloyd,
a species notable for having a cap margin that is at least somewhat striate (the character is more
pronounced in other taxa closely related to A.
volvata). Short gills in the type species are
truncate. Bruised flesh or exposed from the inner side of
the volva may turn pink at first and then (usually
strongly) red-brown in A. volvata. The
other taxa placed in section Amidella that are most closely related to A. ovoidea
are A. proxima Dumée of Mediterranean Europe and
A. neoovoidea Hongo of eastern Asia.
This species is widely eaten in the
Mediterranean region. In Turkey, at a restaurant
supposedly catering to "German" tourists, my eldest son
was served a steak on top of which was a whole, grilled
specimen of A. ovoidea.—R. E. Tulloss
(Bull. : Fr.) Link. 1833. Handb. Erkenn. nutzb. hänfigst. Gewächse: 273.
[Also in Willdenow. 1833. Grundriss Kräuterk., 7th ed., 4: 273??. Link’s complete work was republished in Willdenow’s seventh edition.]
[Note: For additional synonymy, see Amanita Nomenclator (t.b.d.).]
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.
Floriani. 2000. Boll. Gruppo Micol. G. Bresadola 43(2): 28.
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 not directly from the protolog of the present taxon and not cited as the work of another author is from original research of R. E. Tulloss.
RET: longitudinally acrophysalidic; branching, filamentous, undifferentiated hyphae 3.8 - 7.7 µm wide, dominating; branching refractive hyphae 2.8 - 22 µm wide, plentiful; acrophysalides up to 100 × 28 µm, some with cell wall thickened to about 0.5 µm.
RET: [55/3/3] (6.3-) 7.5 - 10.5 (-15.0) × (4.9-) 5.2 - 7.0 (-8.4) µm, (L = 8.9 - 9.2 µm; L’ = 9.1 µm; W = 6.0 - 6.2 µm; W’ = 6.1 µm; Q = (1.27-) 1.29 - 1.67 (-1.81); Q = 1.48 - 1.52; Q’ = 1.50), amyloid, hyaline, thin walled or with 0.5 µm thick walls, broadly ellipsoid to ellipsoid to elongate; apiculus sublateral, cylindric; contents granular to mono- to multiguttulate, sometimes with thin refractive deposit on interior of spore wall; white in deposit.
RET: AUSTRIA: —ca.
Wiener Neustadt, Bad Fischau, ca.
15.x.1973 A. F. M. Reijnders s.n.
BOUCHE-DU-RHÔNE—St. Rémy de
Province, 24.x.1974 C. Bas 6467
(L 974 87 146).
du Var, Montgros, autumn.1886 J.-B.
J. J. Barla s.n. (NY).
ATTICA—Kiphissia, 25.x.1966 M. Pantidou
s.n. (DAOM 116714).
Demetrio Corone, 9.xii.1994 Carmine Lavorato
941209-15 (in herb. C. Lavorato;
LIVORNO—Bibbona, s.d. Ilario Filippi
2074 (in herb. I. Filippi; RET 004-4).
UNKN. PROV.—unkn. loc., 6.xi.2011 C.
Lavorato 111106-06 (in herb. C. Lavorato;
RET 501-2, immature).
—R. E. Tulloss
Information to support the viewer in reading the content of "technical" tabs
can be found here.
(Bull. : Fr.) Link
"European Egg Amidella"
1. Amanita ovoidea, France.
2. Amanita ovoidea, France, 1888 plate of Barla.
3. Amanita ovoidea, Italy.
Francis Massart (1) - France.
Carmine Lavorato (3) - Italy.
Barla, J. B. (2) - Les Champignons des Alpes-Maritimes. 1888. pl. 2 (France).
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.