Tree Identification - Forestry Natural Resources and Wildlife - Lecture Slides, Slides of Wildlife Ecology

Download Tree Identification - Forestry Natural Resources and Wildlife - Lecture Slides and more Slides Wildlife Ecology in PDF only on Docsity! Forestry Science Tree Identification Docsity.com Definitions • Carl von Linne (Linnaeus), a Swedish botanist was the first to use a system of classifying plants in which members of the plant kindom are divided into classes, orders, families, genera and species. • Orders -- made up of one or more families, the names generally end in aceae. • Families -- made up of one or more genera. Docsity.com Leaves • Generally, most trees can be identified by type, size, shape, color, texture and the arrangement of the leaves. – Leaf forms – Leaf apexes – Leaf margins – Leaf bases • Margin -- the outside “edge” of the leaf Docsity.com Twigs • Twigs- one of three ways. -Alternate -Whorled -Opposite • Major identifying characteristics of twigs include buds, leaf scars, lenticels and bark Docsity.com Bark • The most important identification feature in dormant winter periods. • Identifying characteristics of bark include thickness, roughness, type of fissures, color and in some cases, odor. • Twigs and Bark are two of the most helpful characteristics in identifying broad-leaved trees in the winter. Docsity.com Simple Fruits • Dry Fruits – Dehiscent (those that split open when ripe) • Legume • Capsule – Indehiscent (those that do not open when ripe) • Achene • Samara • Nut -- hard, usually one-seeded, with a bony, woody, leathery or papery wall. Docsity.com Compound Fruits • Aggregate fruit -- cluster of ripened fruits produced from a single flower • Multiple fruit -- cluster of fruits of separate flowers crowded together forming what appears to be a single fruit Docsity.com