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Rosa arvensis Hudson
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Field Rose
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Rosaceae
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Transversal section |
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Ring-porous to semi-ring-porous. Pores generally solitary and relatively widely spaced. Growth ring boundaries very distinct. Parenchyrna apotracheal, diffuse, rarely paratracheal. Ground tissue cells thick-walled. Pith: In the pith small groups and rows of thick-walled cells are situated between large thin-walled cells. |
        
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Radial section |
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Simple perforation plates. Spiral thickenings in vessels. Uniseriate rays composed of upright cells. Heterogeneous, multiseriate rays with numerous rows of upright and square marginal cells. Only fibre-tracheids, no libriform fibres present. Prismatic crystals in ray cells. |
   
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Tangential section |
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Two types of rays: uniseriate rays with oval elongated cells, 3 to 12 cells high and multiseriate, generally over 6 cells wide rays, frequently with sheath cells, often over 10mm high. |
   
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Key characters |
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Ring-porous. Solitary pores. Rays both uni- and multiseriate, multiseriate rays very high. Spiral thickenings. |
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Remarks |
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The wood of the different Rosa species could not be differentiated on the basis of anatomic features up to now. |
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