. Botany, an elementary text for schools. Botany. 96 LEAVES AND FOLIAGE. 135. Peltate leaves of so-called Egyptian lotus. Kentucky coffee tree. Remark- able differences in forms are seen by comparing seed-leaves with mature leaves of any plant (Fig. 143). 202. THE LEAF AND ITS ENVIRONMENT. — The form and shape of the leaf often have li!;! direct relation to the place in which the leaf grows. Floating leaves are usualhj expanded and flat, and the petiole varies in length with the depth of the water. Siihmerged leaves are usualhj linear or thread-ldr, or are cut into very narrow divisions. There
. Botany, an elementary text for schools. Botany. 96 LEAVES AND FOLIAGE. 135. Peltate leaves of so-called Egyptian lotus. Kentucky coffee tree. Remark- able differences in forms are seen by comparing seed-leaves with mature leaves of any plant (Fig. 143). 202. THE LEAF AND ITS ENVIRONMENT. — The form and shape of the leaf often have li!;! direct relation to the place in which the leaf grows. Floating leaves are usualhj expanded and flat, and the petiole varies in length with the depth of the water. Siihmerged leaves are usualhj linear or thread-ldr, or are cut into very narrow divisions. Thereby is more surface exposed, and possibly the leaves are less injured by moving water. 203. The largest leaves on a sun-loving plant are usually those which are fidli/ exposed to light. Compare the sizes of the leaves on the ends of branches with those at the base of the branches or in the interior of the tree-top. In dense foli- age masses, the petioles 136. Linear- of the loWCriUOSt Or acuminate -, , , j. i j. leaf of undermost leaves tend to grass. elongate — to push the leaf to the light (Fig. 144). 204. On the approach of win- ter the leaf ceases to work, and often dies. It may drop, when it ^^t. siiort-obiong leaves of box. is said to be deciduous; or it may remain on the plant, when it is said to be persistent. If persistent leaves re- main green during the winter, the plant is said to be. 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 Bailey, L. H. (Liberty Hyde), 1858-1954. New York Macmillan
Size: 1759px × 1421px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorbai, bookcentury1900, bookdecade1900, booksubjectbotany
