The original description of
this species is found in Yang (1997).
The cap of Amanita incarnatifolia is 35 - 70 mm wide, convex to
planar, gray to grayish-brownish in the center, and paler towards the
margin. The margin is striate, with striations usually consuming 20 -
30% of the cap radius.
The gills are free to subfree, pinkish, close, and 5 - 15 mm broad.
The stem is 50 - 100 × 5 - 15 mm, white, finely fibrillose. The ring is
about 10 - 20 mm below the apex of the stem, is membranous and small,
and has both surfaces white. The volva is saccate, 15 - 40 × 10 - 25 mm
and white to dirty white on both surfaces.
The spores measure (9.5-) 10.0 - 13.0 (-13.5) × (6.5-) 7.0 - 9.0 (-9.2) µm
and are inamyloid and ellipsoid. Clamps are present at bases of
This species was originally described from the
provinces of Sichuan and Yunnan, China, where it is known from Pine
forests. The species is also known from Japan.
—Zhu L. Yang
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.
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.
The material presented below is derived entirely from the protolog of the present species and from (Yang 2000).
NOTE: Spore data from papers by Z. L. Yang are presented following his use of the "Times New Roman" face for "Q" and "Q'"—respectively, "Q" and "Q."
from Yang (1997): Solitary or in small groups. At 2000-2850 m elev. In forest with Pinus armandii and P. yunnanensis.
from Yang (1997): CHINA: SICHUAN—Liangshan Yi Autonomous Prefecture - Xichang (county level) City, Luojishan, 2000 m elev., 6.viii.1983 M. S. Yuan 20 (HKAS 11892); Xichang (county level) City, Luojishan, 12.viii.1983 M. S. Yuan 100 (HKAS 11889).
YUNNAN—Lijiang (prefecture level) City - Yulong Nakhi Autonomous Co., Yufengshan, 31.vii.1995 Zhu L. Yang 2105 (HKAS 29519); Yulong Nakhi Autonomous Co., ca. Xuesongcun ("Nguluku"), "end of Sept. and beginning of Oct." Handel-Mazzetti 1903b (WU 11025b).
from Yang (2000): CHINA: JIANGSU—Nanjing (sub-provincial) City - former city of Nanjing, Linggusi woods, 12.vii.1936 K. L. Teng 2450 (formerly "IBM 5784"; BPI 751069, as "A. spreta").
A similar species, also with pinkish lamellae has been found once in eastern North America—A. sp-53. A sporograph comparison of the two taxa is presented in the following figure.
The taxon now known as A. incarnatifolia was originally described from Japan.
—Zhu L. Yang
Information to support the viewer in reading the content of "technical" tabs
can be found here.
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.