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Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Asterids
Cladus: Lamiids
Ordo: Gentianales

Familia: Rubiaceae
Subfamilia: Rubioideae
Tribus: Spermacoceae
Genus: Oldenlandiopsis
Species: O. callitrichoides

Oldenlandiopsis Terrell & W.H.Lewis, Brittonia 42(3): 185. (1990)

monotypic taxon


Terrell, E.E. & Lewis, W.H. 1990. Brittonia 42(3): 185–189, f. 1.
Govaerts, R. et al. 2019. Oldenlandiopsis in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2019 May 5. Reference page.
International Plant Names Index. 2019. Oldenlandiopsis. Published online. Accessed: May 5 2019. 2019. Oldenlandiopsis. Missouri Botanical Garden. Published on the internet. Accessed: 2019 May 5.

Oldenlandiopsis (creeping-bluet) is a genus of flowering plants in the family Rubiaceae. It is monospecific, comprising only one species, Oldenlandiopsis callitrichoides. This species had previously been placed in Hedyotis or in Oldenlandia. It is native to the West Indies, southern Mexico, and Central America. It is naturalized elsewhere, including Florida, Hawaii, South America, and tropical Africa.

Oldenlandiopsis was established in 1990 by Edward E. Terrell and Walter H. Lewis.[1] The generic name indicates a likeness to Oldenlandia. The specific epithet refers to a superficial resemblance to Callitriche, a genus in Plantaginaceae. Oldenlandiopsis callitrichoides was first described in 1862 by August Grisebach as Oldenlandia callitrichoides in a pre-print of a paper that was published the following year in Memoirs of the American Academy of Arts and Sciences.

Oldenlandiopsis is a member of the tribe Spermacoceae. Within the tribe, it is not especially close to Oldenlandia, as had been previously thought. It is very closely related to, and perhaps sister to Houstonia.

Oldenlandiopsis callitrichoides Grisebach


Terrell, Edward E.; Lewis, Walter H. (1990). "Oldenlandiopsis (Rubiaceae), a New Genus from the Caribbean Basin, Based on Oldenlandia callitrichoides Grisebach". Brittonia. 42 (3): 185–190. doi:10.2307/2807214. JSTOR 2807214.

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