''Macrothumia kuhlmannii'' 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 trees native to

Bahia Bahia ( , , ; meaning "bay") is one of the 26 Federative units of Brazil, states of Brazil, located in the Northeast Region, Brazil, Northeast Region of the country. It is the fourth-largest Brazilian state by population (after São Paulo (sta ...

Espírito Santo Espírito Santo (, , ; ) is a state in southeastern Brazil. Its capital is Vitória, and its largest city is Serra. With an extensive coastline, the state hosts some of the country's main ports, and its beaches are significant tourist attra ...

, and

Minas Gerais Minas Gerais () is a state in Southeastern Brazil. It ranks as the second most populous, the third by gross domestic product (GDP), and the fourth largest by area in the country. The state's capital and largest city, Belo Horizonte (literally ...

states of

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

and is the only member 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 ...

''Macrothumia''. Formerly classified in the genus ''

Banara ''Banara'' is a genus of flowering plants in the family Salicaceae (formerly in Flacourtiaceae). Species accepted by the Plants of the World Online as of October 2022: *'' Banara acunae'' *'' Banara arguta'' *'' Banara axilliflora'' *'' B ...

'' in the family Flacourtiaceae,

phylogenetic In biology, phylogenetics (; from Greek φυλή/ φῦλον [] "tribe, clan, race", and wikt:γενετικός, γενετικός [] "origin, source, birth") is the study of the evolutionary history and relationships among or within groups o ...

analyses based on DNA data indicate that this species, along with its close relatives in ''

Ahernia ''Ahernia'' is a genus of a single species (''Ahernia glandulosa'') of trees in the willow family Salicaceae found in Hainan province of China and Luzon island of the Philippines. Previously it was treated in the family Flacourtiaceae or Achariac ...

'', ''

Hasseltia ''Hasseltia'' is a genus of flowering plants in the family Salicaceae. It contains four species of small to medium-sized trees native to the neotropics, ranging from Mexico south to Brazil and Bolivia.Alford, M.H. 2006. A new species of ''Hassel ...

'', and ''

Pleuranthodendron ''Pleuranthodendron'' is a genus of flowering plants in the family Salicaceae. It consists of one species (''Pleuranthodendron lindenii'') of small to medium-sized trees native to the neotropics, specifically Central America and northern South Am ...

'' are better placed in a broadly circumscribed Salicaceae. ''Macrothumia'' differs from its close relatives in having a congested fascicle- or umbel-like

inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...

and a large (>3 cm diameter)

fruit In botany, a fruit is the seed-bearing structure in flowering plants that is formed from the ovary after flowering. Fruits are the means by which flowering plants (also known as angiosperms) disseminate their seeds. Edible fruits in particu ...

. The genus name is derived from the Greek word μακροθυμία, which means long-suffering and enduring patience.

References

Salicaceae Monotypic Malpighiales genera Salicaceae genera {{Salicaceae-stub