This text is derived from the original
description of Amanita griseopantherina.
The fruiting bodies of Amanita griseopantherina
are medium-sized to large.
The cap of the present species is
60 – 140 mm wide, plano-convex to planar, lacks a raised
center. The cap is yellow-brown, brown to dark brown, often
darker at the center. The volva is present as
pyramidal to conical, bumpy, dirty white
to gray warts. The cap’s margin is slightly
grooved for about 10% of the radius. There is
no material hanging from the margin. The
flesh is white.
The gills are free, crowded, and white.
The short gills are truncate and plentiful.
The stem is 70 – 200 × 10 – 30 mm, subcylindric
to narrowing upwards; its surface is white to
dirty white, covered with white to brownish
fibrils. The stem's basal bulb is 20 – 35 mm
wide, subglobose, spindle-shaped to ellipsoid.
The volva forms a short "rolled sock" at the top of
the bulb. The ring hangs near the stem's
top and is white to brownish.
The odor and taste of this species were not recorded.
The spores measure 9.5 – 12.0 × 8.0 – 10.0 µm
and are mostly broadly ellipsoid, occasionally
subglobose or ellipsoid, and inamyloid. Clamps
are common at bases of basidia.
Amanita griseopantherina occurs in
subalpine forests dominated by Fir(Abies)and
Spruce (Picea), and fruits from summer to
autumn in southwestern China.
Amanita griseopantherina can be confused
A. flavopantherina Cui Yang-Yang et al. because of their
similar appearance and habitat. However,
A. flavopantherina has a darker brown cap
covered with yellow volval remnants, a white
to yellow flesh, a relatively lower and
yellower rings with an obviously brown edge,
a browner stem, and broadly ellipsoid to
ellipsoid spores [Q = (1.09–) 1.20 – 1.47 (–1.64)].
Amanita griseopantherina is similar to
(DC.) Krombh. and A. pakistanica Tulloss et al.
However, A. pantherina, a species
described from Europe but not found in China, has
a relatively lower ring, narrower spores and
no clamps. Amanita pakistanica has a cap with
a raised center covered with patchy or flaky,
detersile volval remnants and relatively narrower
spores [Q = (1.16-) 1.25 - 1.69 (-1.97)].—Yang-Yang
Cui and Rachel Warner
ZLY & RET
Yang-Yang Cui, Qing Cai & Zhu L. Yang.
Fungal Diversity ??: ?,
figs. 3(c-d), 5.