Adenia

Adenia subsp. var.
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Adenia is a genus in the passionflower family Passifloraceae. The genus includes a number of tropical and subtropical xerophytes; many of which form substantially thickened bases or lianas. It is also a Caudiciform. Many species are characterised by the extreme toxicity of the sap. In addition to cyanogenic compounds, these contain lectins which destroy ribosomes, hence prevent protein synthesis. This is the same mode of action as ricin, and the toxicities are comparable. A. volkensii was shown to be intensely toxic by Barbieri (1984). Pelosi et al. (2005) compared ten species, and found 3 (A. stenodactyla, A. goezii and A. lanceolata) which were inhibitory at <0.1 ng/ml and lethal to mice at <2 ug/kg, making them among the most potent plant toxins known.

Species and varieties

• Adenia aculeata Engl.
• Adenia cissampeloides (Planch. ex Hook.) Harms
• Adenia cladosepala (Baker) Harms
• Adenia digitata Engl.
• Adenia ellenbeckii Harms
• Adenia firingalavense (Drake ex Jum.) harms
• Adenia formosana Hayata
• Adenia fruticosa
• Adenia glauca Schinz
• Adenia globosa Engl.
• Adenia goetzii
• Adenia keramanthus Harms.
• Adenia lanceolata
• Adenia lobata (Jacq.) Engl.
• Adenia olaboensis Claverie
• Adenia pechuelii Harms
• Adenia racemosa
• Adenia spinosa Burtt Davy
• Adenia stenodactyla
• Adenia venenata Forssk.
• Adenia volkensii Harms

synonyms =

• Blepharanthes Sm., nom. inval.
• Clemanthus Klotzsch
• Echinothamnus Engl.
• Erythrocarpus M.Roem.
• Jaeggia Schinz
• Keramanthus Hook.f.
• Kolbia P.Beauv.
• Machadoa Welw. ex Hook.f.
• Microblepharis (Wight & Arn.) M.Roem.
• Modecca Lam.
• Ophiocaulon Hook.f.
• Paschanthus Burch.

Gallery

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  Adenia fruticosa

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  photo 1

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  photo 2

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  photo 3

External links

• w:Adenia. Some of the material on this page may be from Wikipedia, under the Creative Commons license.
• Adenia QR Code (Size 50, 100, 200, 500)