Ricinodendreae is a
tribe
The term tribe is used in many different contexts to refer to a category of human social group. The predominant worldwide use of the term in English is in the discipline of anthropology. The definition is contested, in part due to conflict ...
of the
subfamily
In biological classification, a subfamily (Latin: ', plural ') is an auxiliary (intermediate) taxonomic rank, next below family but more inclusive than genus. Standard nomenclature rules end botanical subfamily names with "-oideae", and zo ...
Crotonoideae
The Crotonoideae (crotonoids) is a subfamily
In biological classification, a subfamily (Latin: ', plural ') is an auxiliary (intermediate) taxonomic rank, next below family but more inclusive than genus. Standard nomenclature rules end ...
, under 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 ...
Euphorbiaceae
Euphorbiaceae (), the spurge family, is a large family of flowering plants. In English, they are also commonly called euphorbias, which is also the name of Euphorbia, the type genus of the family. Most spurges, such as ''Euphorbia paralias'', ar ...
. It comprises 3
genera
Genus (; : genera ) is a taxonomic rank above species and below family as used in the biological classification of living and fossil organisms as well as viruses. In binomial nomenclature, the genus name forms the first part of the binomial s ...
.
* ''Givotia'' (from east Africa, Madagascar, India and Sri Lanka),
**''
Givotia gosai''
**''
Givotia madagascariensis
''Givotia madagascariensis'', locally known as ''farafatsy'', is a commercially valuable softwood tree endemic to the southwestern Madagascar province formally known as Toliara Province.
It is in the genus '' Givotia'' of the family ''Euphorbia ...
''
**''
Givotia moluccana''
**''
Givotia stipularis''
*''Ricinodendron'' (from Tropical Africa),
**''
Ricinodendron heudelotii''
*''Schinziophyton'' (from Angola, Botswana, Malawi, Mozambique, Namibia, Tanzania, Zambia, Zaïre and Zimbabwe),
**''
Schinziophyton rautanenii''
Notable species include
mongongo (''Schinziophyton rautanenii'') and
njangsa (''Ricinodendron heudelotii'').
Phylogeny
According to the
Open Tree of Life
The Open Tree of Life is an online phylogenetic tree of life – a collaborative effort, funded by the National Science Foundation. The first draft, including 2.3 million species, was released in September 2015. The Interactive graph allows the u ...
, phylogenetic analysis suggests the following relationships amongst genera.
See also
*
Taxonomy of the Euphorbiaceae
280px, Generalized scheme of taxonomy
Taxonomy is a practice and science concerned with classification or categorization. Typically, there are two parts to it: the development of an underlying scheme of classes (a taxonomy) and the allocation ...
References
Crotonoideae
Euphorbiaceae tribes
{{Euphorbiaceae-stub