Oxossia

Oxossia
Flower of Oxossia calyptrocarpa
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Malpighiales
Family:	Passifloraceae
Subfamily:	Turneroideae
Genus:	Oxossia L.Rocha

Oxossia is a genus of flowering plants in the subfamily Turneroideae (Passifloraceae) consisting of 15 species. ^[1] This genus was recently defined in 2019 after a phylogenetic analysis of Turnera justified the creation of the genus. ^[2]

Description

The genus is characterized by its stipules, small flowers, congested inflorescences, "hairy" stamen and style, and the attachment of stamen to the floral tube. ^[2] All members of the genus are heterostylous ^[2] with the exception of O. dasystyla. ^[3] The genus can be divided into two morphological groups: those with white petals and those with yellow pink or red petals. ^[2]

Species

Source: ^[2]

• Oxossia albicans (Urb.) L.Rocha
• Oxossia annularis (Urb.) L.Rocha
• Oxossia calyptrocarpa (Urb.) L.Rocha
• Oxossia capitata (Cambess.) L.Rocha
• Oxossia dasystyla (Urb.) L.Rocha
• Oxossia hatschbachii (Arbo) L.Rocha
• Oxossia hebepetala (Urb.) L.Rocha
• Oxossia maracasana (Arbo) L.Rocha
• Oxossia marmorata (Urb.) L.Rocha
• Oxossia pernambucensis (Urb.) L.Rocha
• Oxossia princeps (Arbo) L.Rocha
• Oxossia rubrobracteata (Arbo) L.Rocha
• Oxossia schomburgkiana (Urb.) L.Rocha
• Oxossia spicata (L.Rocha & Arbo) L.Rocha
• Oxossia waltherioides (Urb.) L.Rocha

Phylogeny

Source: ^[2]

	Outgroup Piriqueta Oxossia marmorata Oxossia pernambucensis Oxossia capitata Oxossia rubrobracteata Oxossia annularis Oxossia calyptrocarpa Oxossia hebepetala Oxossia hatschbachii Oxossia maracasana Oxossia albicans Oxossia spicata

References

1. "Oxossia L.Rocha | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 2022-11-16.
2. Rocha, Lamarck; Ribeiro, Patrícia Luz; Endress, Peter K.; Rapini, Alessandro (2019-08-01). "A brainstorm on the systematics of Turnera (Turneraceae, Malpighiales) caused by insights from molecular phylogenetics and morphological evolution". Molecular Phylogenetics and Evolution. 137: 44–63. Bibcode:2019MolPE.137...44R. doi: 10.1016/j.ympev.2019.04.015 . ISSN   1055-7903. PMID   30999036. S2CID   121658801.
3. Shore, Joel S.; Arbo, Maria M.; Fernández, Aveliano (2006). "Breeding system variation, genetics and evolution in the Turneraceae". New Phytologist. 171 (3): 539–551. doi:10.1111/j.1469-8137.2006.01807.x. hdl: 11336/41821 . ISSN   0028-646X. PMID   16866957.