The following is based on the original description of A. verrucosivolva.
The fruiting bodies of Amanita
verrucosivolva are medium-sized to large. The cap is
70 - 140 mm wide, convex to applanate to concave, often
distinctly umbonate, at first yellowish, becoming orange
to yellow when mature, often yellowish towards margin,
usually glabrous; the cap margin is tuberculate-striate
(30% to 40% of radius), non-appendiculate; and the
context is white.
The gills are free, crowded, and
white to cream, with edges yellowish; the short gills are truncate.
The exannulate stem of A. verrucosivolva is
100 - 220 × 10 - 20 mm, subcylindric or slightly
tapering upwards, with a lower half that is white to
ream and covered with yellow to orange,
snakeskin-like squamules, while the
upper half is yellowish to orange.
The context is white
and hollow; the stipe lacks a basal bulb;
the volva on
the stipe's base is saccate, 40 - 80 × 20 - 35 mm,
1 - 4 mm thick, with its outer surface white to
dirty white and
with brownish to ferruginous, conical to verrucose
The inner surface of the volva is white, and the
volva's internal limb is yellow to yellowish.
Odor of sauerkraut. Taste is mild.
The spores of this species measure
(9.0-) 10.0 - 12.5 (-14.0) ×
(8.5-) 9.0 - 12.0 (-14.0) µm, are globose to
subglobose, and are inamyloid. Clamps are
absent from the bases of the basidia.
This species was originally
described from Yunnan Province, southwestern
China. It has also been found in Hubei
Province, central China.—Zhu L. Yang
Weiss et al. (1998), Lehrstuhl für Spezielle Botanik und Mykologie, Bot. Int., Univ. Tübingen
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
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The same field may also contain black text, which is data from a revision of the present
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Olive text indicates a specimen that has not been
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where data is missing or uncertain.
The following material is derived entirely from the protolog of the present taxon.
NOTE: Spore measurements from papers by Z. L. Yang use his "Times New Roman" face for "Q"
and "Q'"—respectively, "Q" and
from protolog: Solitary or in small groups. At 1900 - 2000 m elev. In subtropical forests with Castanopsis, Lithocarpus, and Magnolia species.
CHINA: YUNNAN—Honghe Hani and Yi Autonomous Prefecture - Pingbian Miao Autonomous Co., Daweishan, 2000 m elev., 4.vii.1992 Z. L. Yang 1865 (paratype, HKAS 32503). Wenshan Zhuang and Miao Autonomous Prefecture - Maguan Co., Gulinjing, 1900 m elev., 29.vi.1992 Z. L. Yang 1852 (paratype, HKAS 32500); Maguan Co., Gulinjing, 2000 m elev., 29.vi.1992 Z. L. Yang 1815 (holotype, HKAS 28253), 1.vii.1992 P. G. Liu 1225 (paratype, HKAS 32501).
—Z. L. Yang
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