''Amanita manginiana'', also known as Mangin's false death cap, Chiu's false death cap, is a

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

of the

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

Amanita The genus ''Amanita'' contains about 600 species of agarics, including some of the most toxic known mushrooms found worldwide, as well as some well-regarded edible species. This genus is responsible for approximately 95% of the fatalities result ...

Description

The cap of ''Amanita manginiana'' is around wide, chestnut brown, darker in the center, with the margin more pallid, silky (bearing fine hairs), convex then applanate, fleshy, and has a nonstriate margin. The

gills A gill () is a respiratory organ that many aquatic organisms use to extract dissolved oxygen from water and to excrete carbon dioxide. The gills of some species, such as hermit crabs, have adapted to allow respiration on land provided they are ...

are adnate and white. Short

are present. The stipe is around 5–8 cm high,

cylindrical A cylinder (from ) has traditionally been a three-dimensional solid, one of the most basic of curvilinear geometric shapes. In elementary geometry, it is considered a prism with a circle as its base. A cylinder may also be defined as an infini ...

, stuffed, white, becoming orangish-brown. The bulb is fleshy,

globose A sphere () is a geometrical object that is a three-dimensional analogue to a two-dimensional circle. A sphere is the set of points that are all at the same distance from a given point in three-dimensional space.. That given point is the ce ...

ovoid An oval () is a closed curve in a plane which resembles the outline of an egg. The term is not very specific, but in some areas (projective geometry, technical drawing, etc.) it is given a more precise definition, which may include either one or ...

. The ring is membranous, white, superior, skirt-like. The volva is

membranous A membrane is a selective barrier; it allows some things to pass through but stops others. Such things may be molecules, ions, or other small particles. Membranes can be generally classified into synthetic membranes and biological membranes. ...

, limbate, and fulvous-white. The spores measure 7–8 × 6 μm and are ovoid to subglobose. Its

spores In biology, a spore is a unit of sexual or asexual reproduction that may be adapted for dispersal and for survival, often for extended periods of time, in unfavourable conditions. Spores form part of the life cycles of many plants, algae, f ...

have a length of around 9.2–10.3 μm and a width of 7.5–7.8 μm. The spores are nothing but

amyloid Amyloids are aggregates of proteins characterised by a Fibril, fibrillar morphology of 7–13 Nanometer, nm in diameter, a beta sheet (β-sheet) Secondary structure of proteins, secondary structure (known as cross-β) and ability to be Staining, ...

rubble and the collected specimens are unfortunately, almost entirely useless. This species is very poorly known. Sources state a species similar to ''A. manginiana'' from

China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...

under the name ''A. manginiana'' sensu W.F. Chiu.

Edibility

''A. manginiana'' appears to belong with a group of

edible An edible item is any item that is safe for humans to eat. "Edible" is differentiated from "eatable" because it does not indicate how an item tastes, only whether it is fit to be eaten. Nonpoisonous items found in nature – such as some mushroo ...

species that at the moment are classed in ''

'' section Phalloideae, but the edibility of ''A. manginiana'' is unknown. According to China Forestry Culture Collection Center, it is reported to be edible with potential medical use. However, due to close similarity to highly toxic species, consumption is unadvisable.云南野生蘑菇中毒防治手册 2011.05
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References

{{Taxonbar, from=Q28402848 manginiana Taxa named by Narcisse Théophile Patouillard Fungus species

Description

Edibility

See also

References