| Dioclea | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Subfamily: | Faboideae |
| Tribe: | Diocleae |
| Genus: | Dioclea Kunth |
| Species | |
| Synonyms | |
| |
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.
Species
As of August 2021, Plants of the World Online accepted the following species:
- 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 megacarpa → Macropsychanthus megacarpus
- 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.
References
- ^ "Dioclea Kunth", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 28 August 2021
- 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, PMC 8359005, PMID 34531697
- 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. Bibcode:2000PChem..55..805B. doi:10.1016/S0031-9422(00)00297-1. PMID 11190400.
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