Dioclea

Life-forms

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Rosids
Cladus: Eurosids I
Ordo: Fabales

Familia: Fabaceae
Subfamilia: Faboideae
Tribus: Phaseoleae
Subtribus: Diocleinae
Genus: Dioclea
Species: D. albiflora – D. apurensis – D. burkartii – D. fimbriata – D. guianensis – D. holtiana – D. lasiophylla – D. lehmannii – D. macrantha – D. ovalis – D. paniculata – D. sericea – D. vallensis – D. virgata
Source(s) of checklist:

Govaerts, R. et al. 2021. Dioclea in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2021 May 14. Reference page.

Name

Dioclea Kunth, 1894

Type species: Dioclea sericea Kunth. LT designated by N. L. Britton et P. Wilson, Sci. Surv. Porto Rico 5: 418 (1924)

Synonyms

Crepidotropis Walp., Linnaea, 14: 296 (1840)
Hymenospron Spreng., Syst. 4: Cur. Post. 282 (1827)
Lepidamphora Zoll. ex Miq.

Distribution
Native distribution areas:

Continental: Southern America
Argentina Northeast, Belize, Bolivia, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Colombia, Costa Rica, Ecuador, French Guiana, Guatemala, Guyana, Honduras, Mexico Southeast, Nicaragua, Panama, Paraguay, Peru, Suriname, Trinidad-Tobago, Venezuela
Introduced into:
Borneo, Ethiopia, India, Malaya, Nigeria, Sri Lanka

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
References
Primary references

Kunth, C.S. in F.W.H.von Humboldt, A.J.A.Bonpland & C.S.Kunth, 1894. Nov. Gen. Sp. 6: 437

Additional references

Govaerts, R.H.A. 2000. World Checklist of Seed Plants Database in ACCESS D: 1-30141. [unavailable to the public] Reference page.

Links

Govaerts, R. et al. 2021. Dioclea in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2021 May 14. Reference page.
International Plant Names Index. 2021. Dioclea. Published online. Accessed: May 14 2021.
Tropicos.org 2021. Dioclea. Missouri Botanical Garden. Published on the internet. Accessed: 2021 May 14.
Hassler, M. 2021. Dioclea. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2021. Species 2000 & ITIS Catalogue of Life. Published on the internet. Accessed: 2021 May 14. Reference page.
Hassler, M. 2021. World Plants. Synonymic Checklist and Distribution of the World Flora. . Dioclea. Accessed: 14 May 2021.

Vernacular names

Dioclea is a genus of flowering plants in the pea family, Fabaceae, that is native to the Americas. The seeds of these legumes are buoyant drift seeds, and are dispersed by rivers.

Taxonomy

A molecular phylogenetic study published in 2020 showed that when broadly circumscribed, Dioclea was not monophyletic. Many species were transferred to the genus Macropsychanthus.[2]
Species

As of August 2021, Plants of the World Online accepted the following species:[1]

Dioclea albiflora R.S.Cowan
Dioclea apurensis Kunth
Dioclea burkartii R.H.Maxwell
Dioclea fimbriata Huber
Dioclea guianensis Benth.
Dioclea holtiana Pittier ex R.H.Maxwell
Dioclea lasiophylla Mart. ex Benth.
Dioclea lehmannii Diels
Dioclea macrantha Huber
Dioclea ovalis R.H.Maxwell
Dioclea paniculata Killip ex R.H.Maxwell
Dioclea sericea Kunth
Dioclea vallensis R.H.Maxwell
Dioclea virgata (Rich.) Amshoff

Species transferred to Macropsychanthus include:

Dioclea grandiflora → Macropsychanthus grandiflorus
Dioclea macrocarpa → Macropsychanthus macrocarpus
Dioclea schimpffii → Macropsychanthus schimpffii

Chemistry

The A-type proanthocyanidin, epigallocatechin-(2β→7,4β→8)-epicatechin, together with epicatechin, luteolin 3′β-d-glucopyranoside, chrysoeriol 7β-d-glucopyranoside and 2-methylpentan-2,4-diol, can be found in the leaves of Dioclea lasiophylla.[3]
References

"Dioclea Kunth", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2021-08-28
de Queiroz, Luciano Paganucci & Snak, Cristiane (2020), "Revisiting the taxonomy of Dioclea and related genera (Leguminosae, Papilionoideae), with new generic circumscriptions", PhytoKeys, 164: 67–114, doi:10.3897/phytokeys.164.55441
Barreiros, André L. B. S.; David, Juceni P.; de Queiroz, Luciano P.; David, Jorge M. (December 2000). "A-type proanthocyanidin antioxidant from Dioclea lasiophylla". Phytochemistry. 55 (7): 805–8. doi:10.1016/S0031-9422(00)00297-1. PMID 11190400.