Biology:Dioclea (plant)

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Short description: Genus of legumes

Dioclea
Scientific classification e
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Tribe: Diocleae
Genus: Dioclea
Kunth[1]
Species

See text.

Synonyms[1]
  • Crepidotropis Walp.
  • Hymenospron Spreng.
  • Lepidamphora Zoll. ex Miq.

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:

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

  1. 1.0 1.1 1.2 "Dioclea Kunth", Plants of the World Online (Royal Botanic Gardens, Kew), https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:30004459-2, retrieved 2021-08-28 
  2. 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, PMID 34531697 
  3. 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. 

Wikidata ☰ Q5222419 entry