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Elm

Scientific Classification

Kingdom: plantae

Division: spermatophytes (seeded plants)

Subdivision: angiosperm {(covered seed),hardwoods}

Order: rosales

Family: ulmaceae

Genus: ulmus

Species: procera  et al

 

Medium to large deciduous hardwoods. Available every now and then from old colonial homesteads around Tasmania. Their large size making them worthwhile to quarter saw for cutting boards (see Ned's plats) etc.

Along with Tasmanian Blackwood, elm is one of the better bleaching timbers.

 

quarter sawn elm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Image is of quarter sawn elm. Note the ray fleck (medullary ray) which is typical of pure quarter sawn timber.

Medullary rays are formations of, primarily, parenchyma cells which allow the radial transmission of sap.

 

A few mechanical properties
       species         dry density  kg/m3 Janka hardness (side grain), dry kN
  English Elm               550   3.7

 

See also density comparative chart here.

 


 

Ulmus procera

elm tree

 

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