Zon, Raphael, 1874-1956, Graves, Henry Solon, 1871-1951 · Washington, D.C. : U.S. Dept. of Agriculture, Forest Service · leaf 36
the spongy parenchyma, but aremade up also exclusively of palisade parenchyma. Stahls experi-ments have also demonstrated that the structure of leaves of the samespecies varies with different light intensities; in the shade the leavesare made up chiefly of spongy parenchyma; in full light, of… … Fig. 5.—Cross section of a spruce needle, a, Grown in the shade; b, grown in full light. strongly developed palisade tissue; in the shade they have a light-green surface, and are made up almost exclusively of spongy paren-chyma. Leaves in light often have a crumpled surface and are fre-quently more…
Plants Effect of light on · Trees Growth · Light Effect on trees · Tree growth
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