The description is taken from the original description (Corner and Bas,
1962). The cap of A. vestita is 20 - 45 mm wide,
plano-convex to plane with a slightly depressed center,
pale grayish white, dry, and with a non or vaguely
sulcate, appendiculate margin. The flesh is white and
soft. The cap is sprinkled with small, micaceous, umber
particles condensed to a soft, granular, 1 mm thick layer over the center.
The gills are free or slightly adnexed, fairly crowded, rather broad, rounded
near the margin of the cap, and milk-white. The short
gills are obliquely truncate to attenuate.
The stem is 40 - 80 × 4 - 8 mm, attenuate upward, solid, white at apex to brownish
below, subannulate to exxanulate, white-flocculose, umber
towards the base, with pulverulent-flocculose volval remnants.
According to Bas (1969), the
spores measure 7.5 - 9 × 5.5 - 6.5 µm and are broadly
ellipsoid to ellipsoid and amyloid. Clamps are not found at bases of basidia.
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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.
All the data below is derived from the protolog, the revision of Bas (1969), and the revision of Yang et al. (2001).
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.