Elementary botany . Fig. 443-Spray of leaves of striped maple, showing different lengths of Fig. of Lebanon, strong light only from one side of tree (Syria). FOLIAGE LEAVES. 407 should be understood that the pattern is made during the growthof the leaves. 778. The tree pattern.—Mosaics are often formed by theexterior foliage on a tree, though they are rarely so regular assome of those mentioned above. Still it is common to see in sometrees with drooping limbs like the elm, beautiful and large mo-saics. The weeping elm sometimes forms a very close andquite even pattern ov
Elementary botany . Fig. 443-Spray of leaves of striped maple, showing different lengths of Fig. of Lebanon, strong light only from one side of tree (Syria). FOLIAGE LEAVES. 407 should be understood that the pattern is made during the growthof the leaves. 778. The tree pattern.—Mosaics are often formed by theexterior foliage on a tree, though they are rarely so regular assome of those mentioned above. Still it is common to see in sometrees with drooping limbs like the elm, beautiful and large mo-saics. The weeping elm sometimes forms a very close andquite even pattern over the entire outer surface. In most treesthe leaf arrangement is not such as to form large patterns, butis more or less open. While the conifers do not form mosaicsthere are many interesting examples of grouping of foliage onbranch systems into broadly expanded areas, as seen in thebranches of white pine trees, especially in the edge of a wood,or as seen in the arbor vitae. OTHER PATTERNS. 779. Imbricate pattern of short stems.—This pattern is quitecommon, and differs from the rosette in that t
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