The following information is derived from (Yang 1997).
bodies of A. citrina var. grisea are medium-sized. The cap is 70 - 80 mm wide, convex to applanate, grey
to dark grey with a brownish tinge, innately radially fibrillose, and
covered with cream-colored to yellowish felty volval remnants; the cap's
margin is smooth and non-appendiculate; and the flesh is white.
The gills are free, crowded, and white, occasionally with a pinkish tinge;
the short gills are attenuate.
The stipe is 80 × 9 - 14 mm, subcylindric or attenuate upwards, with a
surface that is white; the stipe's basal bulb is 25 mm wide and abrupt
to subabrupt. The annulus is membranous, with an upper surface that is
yellow to yellowish and a lower surface that is grayish to whitish.
The spores of A. citrina var. grisea
measure 8.0 - 10.0 (-11.0) × 7.5 - 9.0 (-10.5) µm and are subglobose
and amyloid. Clamps are absent from bases of basidia.
Amanita citrina var. grisea was
originally described from Japan. It was
recently reported also from southwestern China.
(Hongo) Hongo. 1959. Mem. Fac. Liberal Arts Shiga Univ. 9: 71.
"Asian Citrine Bulbous Amanita"
≡Amanita citrina f. grisea Hongo. 1958. J. Jap. Bot 33: 346, fig. 2(a-b).
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.
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.