''Discula'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

of small

land snail A land snail is any of the numerous species of snail that live on land, as opposed to the sea snails and freshwater snails. ''Land snail'' is the common name for terrestrial molluscs, terrestrial gastropod mollusks that have gastropod shell, shel ...

terrestrial Terrestrial refers to things related to land or the planet Earth, as opposed to extraterrestrial. Terrestrial may also refer to: * Terrestrial animal, an animal that lives on land opposed to living in water, or sometimes an animal that lives on o ...

pulmonate Pulmonata or pulmonates is an informal group (previously an order, and before that, a subclass) of snails and slugs characterized by the ability to breathe air, by virtue of having a pallial lung instead of a gill, or gills. The group inclu ...

gastropod Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and fro ...

mollusk Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The ...

s in the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Geomitridae Geomitridae is a taxonomic family of small to medium-sized air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea Helicoidea is a Taxonomy (biology), taxonomic Taxonomic rank, superfamily of air-b ...

Shell description

The shell of these snails is shaped rather like a discus, or a

lens A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction. A simple lens consists of a single piece of transparent material, while a compound lens consists of several simple lenses (''elements'') ...

, with a sharp edge around the periphery of the whorls.

Species

Species in the genus ''Discula'' include: * '' Discula attrita'' * '' Discula bulverii'' * '' Discula calcigena'' * '' Discula cheiranthicola'' * '' Discula cockerelli'' * '' Discula leacockiana'' * '' Discula lyelliana'' * ''

Discula polymorpha ''Discula'' is a genus of small land snails, Terrestrial animal, terrestrial pulmonate gastropod mollusks in the family (biology), family Geomitridae. Shell description The shell of these snails is shaped rather like a discus, or a lens (optics ...

'' * '' Discula pulvinata'' *'' Discula rotula'' * '' Discula tabellata'' * '' Discula tectiformis'' * '' Discula tetrica'' synonyms: * ''Discula bicarinata'' is a synonym for '' Hystricella bicarinata'' (Sowerby, 1824) * ''Discula echinulata'' is a synonym for ''

Hystricella echinulata ''Hystricella echinulata'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Geomitridae, the hairy snails and their allies.MolluscaBase eds. (2022). MolluscaBase. Hystricella echinulata (R. T. Lowe ...

'' * ''Discula oxytropis'' is a synonym for ''

Wollastonaria oxytropis ''Wollastonaria oxytropis'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Geomitridae, the hairy snails and their allies.MolluscaBase eds. (2022). MolluscaBase. Wollastonaria oxytropis (R. T. Lo ...

'' * ''Discula testudinalis'' is a synonym for '' Testudodiscula testudinalis'' * ''Discula turricula'' is a synonym for '' Hystricella turricula'' (R. T. Lowe, 1831)

Note

The name ''Discula'' is ambiguous and also refers to a genus of

fungi A fungus (: fungi , , , or ; or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and mold (fungus), molds, as well as the more familiar mushrooms. These organisms are classified as one ...

in the family

Valsaceae Valsaceae is a family of sac fungi in the Diaporthales order. Genera *'' Amphiporthe'' *'' Apioplagiostoma'' *'' Apioporthella'' *'' Chadefaudiomyces'' *'' Cryptascoma'' *'' Cytospora'' *'' Diaporthella'' *'' Ditopellina'' *'' Durispora ...

to which belongs the plant pathogen

dogwood ''Cornus'' is a genus of about 30–60 species of woody plants in the family Cornaceae, commonly known as dogwoods or cornels, which can generally be distinguished by their blossoms, berries, and distinctive bark. Most are deciduous ...

anthracnose A plant canker is a small area of dead tissue, which grows slowly, often over years. Some cankers are of only minor consequence, but others are ultimately lethal and therefore can have major economic implications for agriculture and horticultur ...

Discula destructiva ''Discula destructiva'' is a fungus in the family Gnomoniaceae which causes dogwood anthracnose, affecting populations of dogwood trees native to North America. It was introduced to the United States in 1978 and is distributed throughout the E ...

''.

Shell description

Species

Note

References

Further reading