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Peltogyne
provided by wikipedia EN
"Purpleheart" redirects here. For other uses, see Purple Heart (disambiguation).

Peltogyne, commonly known as purpleheart, amendoim, violet wood or amaranth with other local names often referring to the colour of the wood, is a genus of 23 species of flowering plants in the family Fabaceae, native to tropical rainforests of Central and South America, from Guerrero in Mexico, through Central America and on as far as south-eastern Brazil. [2]

They are medium-sized to large trees growing to 30–50 m (100–160 ft) tall, with trunk diameters of up to 1.5 m (5 ft). The leaves are alternate, divided into a symmetrical pair of large leaflets 5–10 cm (2–4 in) long and 2–4 cm (1–2 in) broad. The flowers are small, with five white petals, produced in panicles. The fruit is a pod containing a single seed. The timber is desirable, but difficult to work.

Distribution

The species of the genus range from southeastern Brazil through northern South America, Panama, Costa Rica, and Trinidad, with the majority of species in the Amazon Basin. P. mexicana is a geographic outlier, native to the Mexican state of Guerrero.[3] Overharvesting has caused several species to become endangered in areas where they were once abundant.[4]

Wood

The trees are prized for their beautiful heartwood which, when cut, quickly turns from a light brown to a rich purple color. Exposure to ultraviolet (UV) light darkens the wood to a brown color with a slight hue of the original purple.[5] This effect can be minimized with a finish containing a UV inhibitor. The dry timber is very hard, stiff, and dense with a specific gravity of 0.86 (860 kg/m3 or 54 lb/cu ft). Purpleheart is correspondingly difficult to work with.[6] It is very durable and water-resistant.

Uses and hazards

Purpleheart is prized for use in fine inlay work especially on musical instruments, woodturning, cabinetry, flooring, and furniture. The timber is also valuable in applications that require toughness, such as truck decking.[7]

Exposure to the dust, generated by cutting and sanding purpleheart, can cause irritation and nausea, possibly due to the presence of dalbergione (neoflavonoid) compounds in the wood. This also makes purpleheart wood unsuitable to most people for use in jewelry.[8] Purpleheart is also a fairly expensive wood, which is why it is usually used in smaller-scale projects.[9]

Gallery

  • Purpleheart wood.jpg
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    A board laminated with Purpleheart (the darkest of the three), as well as the lighter colored cherry and the salmon colored Lyptus.

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    Peltogyne sp. - MHNT

Species

References

  1. ^ R. C. Barneby (1983). "(711)-(712) Proposals to conserve Plathymenia against Echyrospermum and Peltogyne against Orectospermum (Leguminosae)". Taxon. 32 (3): 488–490. JSTOR 1221525..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output q{quotes:"""""'"'"}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}
  2. ^ Sotuyo, Solange. "El palo morado (Peltogyne mexicana), una leguminosa maderable con futuro incierto y parientes lejanos". Revista Digital Universitaria, Universidad Nacional Autónoma de Mexico. [1]
  3. ^ Sotuyo, Solange. "El palo morado (Peltogyne mexicana), una leguminosa maderable con futuro incierto y parientes lejanos". Revista Digital Universitaria, Universidad Nacional Autónoma de Mexico. [2] Accessed 25 April 2015.
  4. ^ "Purpleheart - Peltogyne - Madera Sudamerica -Consorcio forestal". Maderasdesudamerica.com.
  5. ^ "PURPLEHEART-PELTOGYNE".
  6. ^ Garnet Hall (February 2006). The Art of Intarsia: Projects & Patterns. Tamos Books, Incorporated. pp. 16–. ISBN 978-1-895569-75-9.
  7. ^ "Purpleheart Wood".
  8. ^ Peltogyne in BoDD – Botanical Dermatology Database
  9. ^ J. L. Atrops (1970). Strength Properties of Trinidadian Timbers. University of the West Indies.
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Peltogyne: Brief Summary
provided by wikipedia EN
"Purpleheart" redirects here. For other uses, see Purple Heart (disambiguation).

Peltogyne, commonly known as purpleheart, amendoim, violet wood or amaranth with other local names often referring to the colour of the wood, is a genus of 23 species of flowering plants in the family Fabaceae, native to tropical rainforests of Central and South America, from Guerrero in Mexico, through Central America and on as far as south-eastern Brazil.

They are medium-sized to large trees growing to 30–50 m (100–160 ft) tall, with trunk diameters of up to 1.5 m (5 ft). The leaves are alternate, divided into a symmetrical pair of large leaflets 5–10 cm (2–4 in) long and 2–4 cm (1–2 in) broad. The flowers are small, with five white petals, produced in panicles. The fruit is a pod containing a single seed. The timber is desirable, but difficult to work.

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN
ID
0413761d6164e4e03295be9c6e4447f1