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Virola pavonis (A. DC.) A. C. Sm.

Size

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Medium sized tree, up to 23 m. high, the trunk up to 80 cm. in diameter; branchlets striate, at first ferruginous-tomentellous or puberulent, soon glabrous and nigrescent; petioles deeply canaliculate, rugose, essentially glabrous, 1-2 mm. in diameter, 4-13 mm. long; leaf blades coriaceous or thin coriaceous, oblong-elliptic or narrowly obovate- elliptic, 8-21 cm. long, 2-6.5 cm. broad, attenuate, acute, obtuse, or rarely rounded at base, obtusely cuspidate, subacute, obtuse, or rounded at apex, sparsely pale puberulent beneath (hairs sessile-stellate, 4-6- branched, 0.1-0.2 mm. in diameter), soon glabrous, the costa shallowly grooved or nearly plane above, prominent beneath, the secondary nerves 15-20 per side, sharply impressed above, raised beneath, spreading or slightly ascending, the veinlets plane or faintly impressed; staminate infloreseences broadly paniculate, many-flowered, freely branching, 7-15 cm. long and nearly as broad, at first densely ferruginous- or brown-puberulent, the branchlets somewhat flattened and soon glabrous, the flowers persistently puberulent, the peduncle 2-4 cm. long; bracts oblong, puberulent, 4-7 mm. long, soon deciduous; flowers in ultimate clusters of 3-8, the pedicels slender, up to 2 mm. long; perianth carnose, 1.5-2 mm. long, 3-lobed more than half the total length, the lobes ovate- oblong, obtuse; androecium 1.1-1.5 mm. long, the filament column slender, 0.7-0.8 mm. long, the anthers 3, 0.4-0.7 mm. long, connate to apex or slightly divergent, obtuse; pistillate infloreseences 5-16 cm. long, spreading, freely branching, the peduncle up to 4.5 cm. long, the flowers 2-8 per cluster, the pedicels stout, 2-4 mm. long; ovary sub- globose or ellipsoid, densely and closely brown puberulent, the stigma deeply cleft; fruiting inflorescences sparsely puberulent or glabrous throughout, the mature fruits usually few, pedicellate (pedicel stout, 4-7 mm. long), ellipsoid, 25-50 mm. long, 15-23 mm. broad, usually distinctly carinate, obtuse or subacute at apex, the pericarp coriaceous, rugose, woody, 2-7 mm. thick, the aril laciniate nearly to base, the seed ellipsoid, longitudinally ridged by pressure of the aril.
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Virola pavonis

provided by wikipedia EN

Virola pavonis is a species of tree in the family Myristicaceae. It is found in Brazil (Acre, Amazonas, Mato Grosso, Pará, Rondônia), Colombia, Ecuador, Peru and Venezuela.[1] The tree grows to a height of about 15-30m tall.[1]

Appearance

Fruit and flowers

The Virola pavonis tree bears an ellipsoidal fruit, 36–42 mm long and 30–34 mm in diameter.[1] The fruit appears to be nut like, with an outer shell with a reddish colored fruit inside. Before the fruit gets to this stage, it is a green unripe nut like in appearance. The Virola pavonis also is a flowing tree, having small reddish yellow flowering bud.

Leaves

The leaves of the Virola pavonis tree are in an alternate pattern, meaning the leaves spring one node at different levels of the stem. The veins of the leaf are pinnate. There is one main stem or midrib from which the other stems source from. The leaf is elliptically shaped with smooth margins (or edges). Also, the leaves of Virola pavonis are stalked meaning the leaves have a petiole thus meaning it is petiolated.

Occurrences

Virola pavonis has the highest concentration as well as the most commonly recorded to be found in various areas of Peru as well as in the Amazon.

Chemical components

Virola pavonis bears a fruit. The seeds of this fruit contain various neolignans. According to an abstract written by Marcia O.M. Marquesa, Massayoshi Yoshidaa and Otto R. Gottlieba for the Instituto de Química, Universidade de São Paul in March 1992,

"Virola pavonis was found to contain in the arils of its fruits 8.O.4′,7.O.3′-neolignans (eusiderins A, C and K) and a 8.O.4′-neolignan (of the β-propenylaryloxy-arylpropane type) and in the seed coats of its fruits 8.5′-neolignans (carinatone, carinatol) and 8.5′,7.O.4′-neolignans (dihydrocarinatin, carinatin). Some previous 13C NMR assignments for the latter four compounds are corrected."

The leaves of Virola pavonis contain the chemical compounds DMT and pavonisol, according to Pedro H Ferria and Lauro E.S Barataa;

"Pavonisol, a new C-1/C-2 oxygenated phenylpropanoid, together with the known eusiderin-E and an 8,4′-oxyneolignan, were isolated from Virola pavonis leaves. Their structures were established by spectroscopic methods and chemical transformations."

See also

References

  1. ^ a b c d e f "Plantes et botanique :: Virola pavonis". www.plantes-botanique.be. Retrieved 2008-04-30.

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Virola pavonis: Brief Summary

provided by wikipedia EN

Virola pavonis is a species of tree in the family Myristicaceae. It is found in Brazil (Acre, Amazonas, Mato Grosso, Pará, Rondônia), Colombia, Ecuador, Peru and Venezuela. The tree grows to a height of about 15-30m tall.

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
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wikipedia EN