Résumé.-L'Aristida pungens se distingue des autres Graminées capables de coloniser les zones arides algériennes par un faible développement du tissu fibreux des feuilles et une moindre lignification. L'architecture pariétale des fibres apparaT! également relativement simple. Ces caractéristiques peuvent avoir une Influence importante sur l'exploitation éventuelle de I'Arlstida comme plante papetière ou fourragère.Summary.-ln Aristida pungens leaves, the extension of the fibrous tissue was more limited and ~s degree of lignification was notlceably lower !han ln other grass specles growing ln arld zones of Algerla.The helicoïdal texture of fibre and epldermis oeil walls was apparently Jess compllcated. These characteristics of the leaves lntervene ln the ir properties and probably play a raie ln thelr possible use as pulp or forage.
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