Stenomesseae was a
tribe
The term tribe is used in many different contexts to refer to a category of human social group. The predominant worldwide usage of the term in English is in the discipline of anthropology. This definition is contested, in part due to confl ...
(in the family
Amaryllidaceae
The Amaryllidaceae are a family of herbaceous, mainly perennial and bulbous (rarely rhizomatous) flowering plants in the monocot order Asparagales. The family takes its name from the genus '' Amaryllis'' and is commonly known as the amaryl ...
, subfamily
Amaryllidoideae), where it forms part of the Andean
clade, one of two American clades. The tribe was originally described by
Traub Traub is a German surname. Notable people with the surname include:
*Andrew Traub (born 1988), Scottish football defender
*Barbara Traub, American photographer
*Charles H. Traub (born 1945), American photographer and educator
* Daniel Traub (born 1 ...
in his monograph on the Amaryllidaceae in 1963, as Stenomessae based on the type genus ''
Stenomesson
''Stenomesson'' is a genus of bulbous plants in the family Amaryllidaceae. All the species are native to western South America (Colombia, Ecuador, Peru and northern Chile).Meerow, Alan W. 2000. Phylogeny of the American Amaryllidaceae based on nr ...
''. In 1995 it was recognised that Eustephieae was a distinct group separate from the other Stenomesseae. Subsequently, the Müller-Doblies' (1996) divided tribe Eustephieae into two subtribes, Stenomessinae and Eustephiinae.
The advent of
molecular phylogenetics
Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to ...
showed that the Stemomesseae (including Stenomesson) was
polyphyletic
A polyphyletic group is an assemblage of organisms or other evolving elements that is of mixed evolutionary origin. The term is often applied to groups that share similar features known as homoplasies, which are explained as a result of conver ...
. Consequently, a separate tribe (Clinantheae) was created from one group and the remainder, which
segregated with
Eucharideae was treated as another tribe. Initially it was suggested that this combined tribe be referred to as a newly circumscribed Stenomesseae, but subsequently the term Eucharideae has been conserved.
Taxonomy
Phylogeny
The placement of Stenomesseae, now Eucharideae within subfamily Amaryllidoideae is shown in the following cladogram.
References
Bibliography
* , in
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(additional excerpts)*
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External links
{{Taxonbar, from=Q10678879
Amaryllidoideae
Asparagales tribes
Historically recognized angiosperm taxa