Geissois
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Geissois is a genus of trees and shrubs in the plant family Cunoniaceae. It includes about 19 species mostly found in New Caledonia, but also in Fiji, Vanuatu, and the Solomon Islands. Leaves are opposite, palmate with 3-9 leaflets, with entire margin (serrate in Geissois hirsuta and juveniles) and intrapetiolar stipules. The inflorescences are simple racemes (trident in Geissois hirsuta) and bottle-brush like. The flowers have four red sepals, lacking petals, with many long red stamens. The fruit is a capsule, the seeds flat and winged. The genus includes several nickel hyperaccumulator (most species occurring on ultramafic rocks)[1][2] and one aluminum hyperaccumulator, Geissois polyphylla.[2]
Two species from Australia formerly placed in this genus have now been transferred to the genus Karrabina.[3]
Species
References
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- ↑ Jaffré, T., Brooks, R.R. & Trow, J.M. (1979). Hyperaccumulation of nickel by Geissois species. Plant and Soil 51 : 157‑62.
- ↑ a b Pillon, Y., Hopkins, H.C.F, Rigault, R., Jaffré, T. & Stacy, E.A (2014). Cryptic adaptive radiation in tropical forest trees in New Caledonia. The New Phytologist 202 : 521‑30.
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- ↑ Hopkins, H.C., Pillon, Y., Hoogland, R.D. (2014). Cunoniaceae : Flore de la Nouvelle-Calédonie, volume 26. Publications scientifiques du Muséum, Paris; IRD, Marseille, 455 p. (collection Faune et Flore tropicales; 45)
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- ↑ a b c Hopkins, H.C.F. (2006). Nomenclature and typification in Geissois (Cunoniaceae) in the South-West Pacific. Adansonia 28 : 311‑27.
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