. Plants and their ways in South Africa. Botany; Botany. 5^ Plants and tJieir Ways in South Africa time they lose their elasticity and become too small also. Just underneath lie special cells which keep it renewed. Difierent trees fashion theincork after different patterns. In Blue Gums the renewing cells form long narrow plates, and the old tattered garment is shed in long thin strips. In the oak and pine the pieces are small and narrow but thick, while pieces of cork in the wild olive are thin, small, and rough. Cork does not fall off as fast as it cracks apart, but from a tree you can remov
. Plants and their ways in South Africa. Botany; Botany. 5^ Plants and tJieir Ways in South Africa time they lose their elasticity and become too small also. Just underneath lie special cells which keep it renewed. Difierent trees fashion theincork after different patterns. In Blue Gums the renewing cells form long narrow plates, and the old tattered garment is shed in long thin strips. In the oak and pine the pieces are small and narrow but thick, while pieces of cork in the wild olive are thin, small, and rough. Cork does not fall off as fast as it cracks apart, but from a tree you can remove layer after layer that have been formed in successive years. This portion of the stem as far in as the cork is formed is known as the outer bark. So long as the renewing cells, or cork cambium, are not destroyed, cork may be removed without causing the death of the tree, and so from the Cork Oak, bottle cork is removed year after year. In this bark a substance called Tannin preserves the wood from decay. Unfortunately for the tree, tannin is ex-. Fir,. 37.—Lenticels on ihe bark of Poplars. cellent for preserving leather also, and so the beautiful J'rntea cyiiaroides, Linn., Leucosprrinum cojuicarpnm, R. Hr. (Kreupel. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Stoneman, Bertha. London, New York, Longmans, Green
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1915
