''Adenoa'' is a

monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispec ...

genus of

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. They include all forbs (flowering plants without a woody stem), grasses and grass-like plants, a vast majority of ...

s belonging to Turneroideae (

Passifloraceae The Passifloraceae are a family of flowering plants, containing about 750 species classified in around 27 genera. They include tree In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches a ...

''Adenoa cubensis''

''A. cubensis (Britton & P.Wilson)'' is currently, the only species assigned to ''Adenoa''. It is a shrub native to southeast

Cuba Cuba ( , ), officially the Republic of Cuba ( es, República de Cuba, links=no ), is an island country comprising the island of Cuba, as well as Isla de la Juventud and several minor archipelagos. Cuba is located where the northern Caribbea ...

. Originally, classified as ''

Piriqueta ''Piriqueta'' is a genus of flowering plants belonging to Turneroideae (Passifloraceae The Passifloraceae are a family of flowering plants, containing about 750 species classified in around 27 genera. They include trees, shrubs, lianas, and ...

cubensis,'' it would later be reclassified as Adenoa by MM Arbo in 1977''.''

Floral morphology

''A. cubensis'' has white homostylous flowers (3cm) with protruding styles, free penduncles (1.5cm), and short

pedicels In botany, a pedicel is a stem that attaches a single flower to the inflorescence. Such inflorescences are described as ''pedicellate''. Description Pedicel refers to a structure connecting a single flower to its inflorescence. In the absenc ...

(0.5cm). The stamen of ''A. cubensis'' are free, similar to those found in ''Piriqueta''. The anthers are obtuse. Overall, the flowers of ''A. cubensis'' are considered more complex than those found in '' Erblichia'' but simpler than those found in ''

Turnera ''Turnera'' is a genus of flowering plants in the passionflower family, Passifloraceae. It contains more than 100 species native to tropical and subtropical America. The name honours English naturalist William Turner (1508–1568). It was previ ...

'' and ''Piriqueta.'' In addition to the differences in flower complexity, there are differences between ''A. cubensis''' pollen exine and the exine of other members of Turneroideae.

References

{{Taxonbar, from=Q8189267 Passifloraceae Malpighiales genera