This text is derived from the original description
of Amanita tenuifulva. The fruiting bodies of
Amanita tenuifulva are medium-sized.
The cap is 50 – 80 mm wide, plano-convex to
planar, raised over the stem (umbonate), dark brown
in the center, gradually changing towards the
margin to brown to brownish. The cap’s
margin is radially grooved for 50% of the
radius. There is no material hanging from the
edge. The flesh is white to cream.
The gills are free, crowded, and white
to cream. The short gills are truncate and plentiful.
The stem is 100 – 140 × 9 – 15 mm,
nearly cylindrical or narrowing upwards, dirty
white to brownish, covered with white
to brown tomentum. The stem lacks a
basal bulb. At the stem's base, the
volva is saccate, 16 – 35 × 13 – 20 mm,
membranous, and both the inner and outer
surfaces are white with brown tinge.
truffle-like fruiting body
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The odor and taste of the present species were not recorded.
The spores measure 10.0 – 12.0 × 10.0 – 11.5 µm
and are globose to subglobose and inamyloid. There
are no clamps at the bases of basidia.
Amanita tenuifulva is described from Yunnan
Province, China. This species occurs in broad-leaved
forests with Fagaceae.
Amanita tenuifulva is similar to
the latter differs from the former in its
relatively robust fruiting body with a
proportionally shorter stem, and the structure
of the volval remnants on the stem’s base. In
China, A. tenuifulva is also comparable
Zhu L. Yang et al. However,
A. orientifulva has a relatively robuster
fruiting body, larger spores
(Q = 1.0 - 1.12 (-1.23) and scarce inflated
cells in the outer part of the volval
remnants on the stem’s base.—Yang-Yang Cui
and Rachel Warner
Yang-Yang Cui, Qing Cai, Zhu L. Yang in Cui et al.
Fungal Diversity 91(1): 99. figs. 22l-m, 28.
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where data is missing or uncertain.
The following material is derived directly from the
protolog of the present taxon and associated documen-
tation such as sequences deposited in GenBank.
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Yang-Yang Cui, Qing Cai & Zhu L. Yang
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