''Emmotum'' 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 ...

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed with ...

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 ...

Metteniusaceae Metteniusaceae are a family of flowering plants, the only family in the order Metteniusales. It consists of about 10 genera and 50 species of trees, shrubs, and lianas, primarily of the tropics. The family was formerly restricted to just '' Mette ...

. It was formerly placed in the family

Icacinaceae The Icacinaceae, also called the white pear family, are a family (biology), family of flowering plants,"Icacinaceae" At: Angiosperm Phylogeny Website At: Missouri Botanical Garden Website (see ''External links'' below). consisting of trees, shrub ...

. It has about 13

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

. One of these species, ''E. harleyi'', was described in 2007.Rodrigo Duno de Stefano, Diego F. Angulo, and Fred W. Stauffer. 2007. "''Emmotum harleyi'', a New Species from Bahia, Brazil, and Lectotypification of Other Icacinaceae". ''Novon'' 17(3):306-309.

Description

''Emmotum'' is a genus of

shrub A shrub or bush is a small to medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees by their multiple ...

s and

tree In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, e.g., including only woody plants with secondary growth, only ...

s. The

flower Flowers, also known as blooms and blossoms, are the reproductive structures of flowering plants ( angiosperms). Typically, they are structured in four circular levels, called whorls, around the end of a stalk. These whorls include: calyx, m ...

s are small and

white White is the lightest color and is achromatic (having no chroma). It is the color of objects such as snow, chalk, and milk, and is the opposite of black. White objects fully (or almost fully) reflect and scatter all the visible wa ...

. The inner surface of the

petal Petals are modified leaves that form an inner whorl surrounding the reproductive parts of flowers. They are often brightly coloured or unusually shaped to attract pollinators. All of the petals of a flower are collectively known as the ''corol ...

s is conspicuously hairy. ''Emmotum'' has a 3- locular

ovary The ovary () is a gonad in the female reproductive system that produces ova; when released, an ovum travels through the fallopian tube/ oviduct into the uterus. There is an ovary on the left and the right side of the body. The ovaries are end ...

Taxonomy

The

type species In International_Code_of_Zoological_Nomenclature, zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the spe ...

for ''Emmotum'' is ''E. fagifolium'' W. Hamilton. ''Emmotum'' is divided into two

sections Section, Sectioning, or Sectioned may refer to: Arts, entertainment and media * Section (music), a complete, but not independent, musical idea * Section (typography), a subdivision, especially of a chapter, in books and documents ** Section sig ...

: ''Emmotum'' and ''Brevistyla''. Section ''Brevistyla'' comprises four species and had formerly been treated as a separate genus. ''Emmotum'' was named by Desvaux and

Hamilton Hamilton may refer to: * Alexander Hamilton (1755/1757–1804), first U.S. Secretary of the Treasury and one of the Founding Fathers of the United States * ''Hamilton'' (musical), a 2015 Broadway musical by Lin-Manuel Miranda ** ''Hamilton'' (al ...

(1783–1856) in 1825.''Emmotum'' At: International Plant Names Index. (See ''External links'' below).William Hamilton. 1825. ''Prodromus Plantarum Indiae Occidentalis'':29. (See ''External links'' below)

George Bentham George Bentham (22 September 1800 – 10 September 1884) was an English botanist, described by the weed botanist Duane Isely as "the premier systematic botanist of the nineteenth century". Born into a distinguished family, he initially studie ...

described the genus ''Pogopetalum'' in 1841, but John Miers recognized that it was the same as ''Emmotum'', described earlier. Because the earlier name has priority, ''Pogopetalum'' is no longer a

correct name In botany, the correct name according to the ''International Code of Nomenclature for algae, fungi, and plants'' (ICN) is the one and only botanical name that is to be used for a particular taxon, when that taxon has a particular circumscription, p ...

. ''Emmotum'' belongs to an informal

group A group is a number of persons or things that are located, gathered, or classed together. Groups of people * Cultural group, a group whose members share the same cultural identity * Ethnic group, a group whose members share the same ethnic iden ...

of six genera known as the ''Emmotum'' group, that was formerly placed in family Icacinaceae.Frederick Lens, Jesper Kårehed, Pieter Baas, Steven Jansen, David Rabaey, Suzy Huysmans, Thomas Hamann, and Eric Smets. 2008. "The wood anatomy of the polyphyletic Icacinaceae s.l. and their relationships within asterids". ''Taxon'' 57(2):525-552. These genera are: '' Calatola'', '' Ottoschulzia'', '' Oecopetalum'', '' Poraqueiba'', ''Emmotum'', and '' Platea''. ''Platea'' is

native Native may refer to: People * '' Jus sanguinis'', nationality by blood * '' Jus soli'', nationality by location of birth * Indigenous peoples, peoples with a set of specific rights based on their historical ties to a particular territory ** Nat ...

Asia Asia ( , ) is the largest continent in the world by both land area and population. It covers an area of more than 44 million square kilometres, about 30% of Earth's total land area and 8% of Earth's total surface area. The continent, which ...

, while the others are from the

New World The term "New World" is used to describe the majority of lands of Earth's Western Hemisphere, particularly the Americas, and sometimes Oceania."America." ''The Oxford Companion to the English Language'' (). McArthur, Tom, ed., 1992. New York: ...

.Rodrigo Duno de Stefano and Germán Carnevali Fernández-Concha. 2011. "Morphology-inferred phylogeny and a revision of the genus ''Emmotum'' (Icacinaceae)". ''Annals of the Missouri Botanical Garden'' 98(1):1-27. In the past, a separate family Emmotaceae was established with two genera, both having three carpels. pages 842 and 843 The

APG IV system The APG IV system of flowering plant classification is the fourth version of a modern, mostly molecular-based, system of plant taxonomy for flowering plants (angiosperms) being developed by the Angiosperm Phylogeny Group (APG). It was publish ...

places this group in the family

Species

Species include:

References

External links

''Emmotum''
At:Plant Names
At:IPNI

''Emmotum''
In:Prodromus Plantarum Indiae Occidentalis
{{Authority control Metteniusaceae Asterid genera