Lepiota clypeolaria, commonly known as the shield dapperling or the shaggy-stalked Lepiota, is a common, eat mushroom in the genus ''

Lepiota ''Lepiota'' is a genus of gilled mushrooms in the family Agaricaceae. All ''Lepiota'' species are ground-dwelling saprotrophs with a preference for rich, calcareous soils. Basidiocarps (fruit bodies) are agaricoid with whitish spores, typically ...

''. It is widely distributed in northern

temperate In geography, the temperate climates of Earth occur in the middle latitudes (23.5° to 66.5° N/S of Equator), which span between the tropics and the polar regions of Earth. These zones generally have wider temperature ranges throughout t ...

zones, where it grows in

deciduous In the fields of horticulture and Botany, the term ''deciduous'' () means "falling off at maturity" and "tending to fall off", in reference to trees and shrubs that seasonally shed leaves, usually in the autumn; to the shedding of petals, aft ...

and

coniferous forest Conifers are a group of cone-bearing seed plants, a subset of gymnosperms. Scientifically, they make up the division Pinophyta (), also known as Coniferophyta () or Coniferae. The division contains a single extant class, Pinopsida. All exta ...

Fruit bodies The sporocarp (also known as fruiting body, fruit body or fruitbody) of fungi is a multicellular structure on which spore-producing structures, such as basidia or asci, are borne. The fruitbody is part of the sexual phase of a fungal life cyc ...

have a brownish

cap A cap is a flat headgear, usually with a visor. Caps have crowns that fit very close to the head. They made their first appearance as early as 3200 BC. Caps typically have a visor, or no brim at all. They are popular in casual and informal se ...

, a shaggy stipe with a collapsed, sheathing

ring Ring may refer to: * Ring (jewellery), a round band, usually made of metal, worn as ornamental jewelry * To make a sound with a bell, and the sound made by a bell :(hence) to initiate a telephone connection Arts, entertainment and media Film and ...

or ring zone, and spindle-shaped

spore 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 ...

Taxonomy

The species was first described in 1789 as ''Agaricus clypeolarius'' by French mycologist Jean Baptiste Francois Bulliard.

Paul Kummer Paul Kummer (22 August 1834 – 6 December 1912) was a minister, teacher, and scientist in Zerbst, Germany, known chiefly for his contribution to mycological nomenclature. Earlier classification of agarics by pioneering fungal taxonomist Elias Ma ...

transferred it to ''

'' in 1871. It is commonly known as the "shaggy-stalked Lepiota".

Description

The

is egg-shaped when young, soon broadly bell-shaped and has pale straw- or orange-brown scales on a pale background. The central umbo is covered with a well-delimited uniform disk of the same colour as the scales. It grows to a diameter of . 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 white, crowded, free from attachment to the stipe. The white

stem Stem or STEM may refer to: Plant structures * Plant stem, a plant's aboveground axis, made of vascular tissue, off which leaves and flowers hang * Stipe (botany), a stalk to support some other structure * Stipe (mycology), the stem of a mushro ...

has an indistinct

, below which it is coarsely woolly, giving an appearance which is sometimes described as "booted". The stipe, which measures long by thick, is hollow and slender, expanding slightly at the base into a club shape. The

flesh Flesh is any aggregation of soft tissues of an organism. Various multicellular organisms have soft tissues that may be called "flesh". In mammals, including humans, ''flesh'' encompasses muscle Skeletal muscles (commonly referred to as mu ...

is white and has an unpleasant smell. The

spore print 300px, Making a spore print of the mushroom ''Volvariella volvacea'' shown in composite: (photo lower half) mushroom cap laid on white and dark paper; (photo upper half) cap removed after 24 hours showing pinkish-tan spore print. A 3.5-centimeter ...

is white.

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 ...

are fuse-shaped (fusiform), meaning that they are tapered at both ends. They have dimensions of 12–16 by 5–6 μm.

Cystidia A cystidium (plural cystidia) is a relatively large cell found on the sporocarp of a basidiomycete (for example, on the surface of a mushroom gill), often between clusters of basidia. Since cystidia have highly varied and distinct shapes that ar ...

on the gill edge (cheilocystidia) are club-shaped to cylindrical, and measure 20–40 by 5–15 μm.

Similar species

The species ''Lepiota ochraceosulfurescens'' may be distinguished as having a less defined dark area in the cap centre, a smell of rubber or melted butter, and yellow flesh in the stipe base, but in Species Fungorum and Funga Nordica this name is regarded as a synonym. ''Lepiota magnispora'' is similar in appearance and often confused with ''L. clypeolaria''. The former species has brighter colours with a more intensely coloured cap center, and longer spores. ''L. clypeolaria'' is probably the best known of the section ''Fusisporae'' within genus ''Lepiota'', whose members are characterized by long spindle-shaped spores and a fluffy stem beneath the ring. ''L. clypeolaria'' is considered to be poisonous,'''' but more importantly, it resembles some of the more deadly species of its genus.

Habitat and distribution

The fruit bodies of ''Lepiota clypeolaria'' grow singly or in small groups on the ground in

and

s. A common species, it is widespread in

regions of the

Northern Hemisphere The Northern Hemisphere is the half of Earth that is north of the Equator. For other planets in the Solar System, north is defined as being in the same celestial hemisphere relative to the invariable plane of the solar system as Earth's Nort ...

, and has been reported from Asia, Europe, North America, and South America. Fruiting occurs in autumn. In China, it is known from the provinces of

Heilongjiang Heilongjiang () formerly romanized as Heilungkiang, is a province in northeast China. The standard one-character abbreviation for the province is (). It was formerly romanized as "Heilungkiang". It is the northernmost and easternmost province ...

Jilin Jilin (; alternately romanized as Kirin or Chilin) is one of the three provinces of Northeast China. Its capital and largest city is Changchun. Jilin borders North Korea (Rasŏn, North Hamgyong, Ryanggang and Chagang) and Russia (Prim ...

Liaoning Liaoning () is a coastal province in Northeast China that is the smallest, southernmost, and most populous province in the region. With its capital at Shenyang, it is located on the northern shore of the Yellow Sea, and is the northernmost ...

Jiangsu Jiangsu (; ; pinyin: Jiāngsū, Postal romanization, alternatively romanized as Kiangsu or Chiangsu) is an Eastern China, eastern coastal Provinces of the People's Republic of China, province of the China, People's Republic of China. It is o ...

Guangdong Guangdong (, ), alternatively romanized as Canton or Kwangtung, is a coastal province in South China on the north shore of the South China Sea. The capital of the province is Guangzhou. With a population of 126.01 million (as of 2020) ...

, and

Yunnan Yunnan , () is a landlocked Provinces of China, province in Southwest China, the southwest of the People's Republic of China. The province spans approximately and has a population of 48.3 million (as of 2018). The capital of the province is ...

References

External links

* * {{Taxonbar, from=Q300967 clypeolaria Fungi described in 1789 Fungi of Asia Fungi of Europe Fungi of North America Poisonous fungi Taxa named by Jean Baptiste François Pierre Bulliard