. Our native trees and how to identify them; a popular study of their habits and their peculiarities. Trees. FORM AND STRUCTURE they are wanting. The Sycamore and Black Willow afford excellent examples of stipules. ARRANGEMENT. When leaves are distributed singly at different heights on the stem, they are said to be alternate. A\'hen two stand op- posite each other at the nodes, they are opposite. When more than two are borne at a node in a circle around the stem, they are whorled. KINDS OF LEAVES. Leaves are either simple or compound. A Simple Leaf has but one blade. The leaves of the Elm are
. Our native trees and how to identify them; a popular study of their habits and their peculiarities. Trees. FORM AND STRUCTURE they are wanting. The Sycamore and Black Willow afford excellent examples of stipules. ARRANGEMENT. When leaves are distributed singly at different heights on the stem, they are said to be alternate. A\'hen two stand op- posite each other at the nodes, they are opposite. When more than two are borne at a node in a circle around the stem, they are whorled. KINDS OF LEAVES. Leaves are either simple or compound. A Simple Leaf has but one blade. The leaves of the Elm are simple. A Compound Leaf has more than one blade ; each blade is then called a leaflet. The leaves of the Sumach are pinnately compound ; the leaves of the Horse-chestnut are palmately compound. VERNATION OR PREFOLIATION. In the study of the leaves (jf trees considerable attention is given to the way the leaves are folded in the bud ; this is. Fig. 4. Fig. 5. Fig. 7. Fig. 9. called vernation. It may be studied from two points of view ; how the leaves are arranged with reference to each other, or how the individual leaf is folded. 505. 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 Keeler, Harriet L. (Harriet Louise), 1846-1921. New York, C. Scribner's Sons
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1910
