1 / 76

MN Trees

MN Trees. Leaf Parts Terms. Blade Flat expanding part of leaf Bud Growing tip of stem Leaflet Blade of a compound leaf Leaf scar Mark where leaf WAS attached. Leaf Parts Terms II. Node Place on stem where leaf is attached Petiole Leaf stalk Sessile Leaf or leaflet withOUT a stalk

xenon
Download Presentation

MN Trees

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. MN Trees

  2. Leaf Parts Terms • Blade • Flat expanding part of leaf • Bud • Growing tip of stem • Leaflet • Blade of a compound leaf • Leaf scar • Mark where leaf WAS attached.

  3. Leaf Parts Terms II • Node • Place on stem where leaf is attached • Petiole • Leaf stalk • Sessile • Leaf or leaflet withOUT a stalk • Veins • Vascular tissue of leaf (think your own veins).

  4. Leaf Parts

  5. Leaf Arrangement • Adherent • Grown together • Alternate • Leaf arrangement, leaflet offset from one side to the other side • Compound leaf • Has two or more distinct leaves or leaflets • Opposite • Leaflets are directly across from each other

  6. Leaf Arrangement II • Palmate • Veins or leaflets spreading from a common center • Pinnate • Arranged on two sides • Whorl • Three or more leaves arising at the same node

  7. Leaf Arrangement

  8. Leaf Arrangement

  9. Leaf Shape Terms • Acute • Sharp, pointed • Awl shaped • Tapering to a sharp point • Cordate • Heart shaped • Elliptical • Rounded about equally at each end

  10. Leaf Shapes Terms II • Entire or smooth • Margin without teeth or lobes, widest below middle • Lanceolate • Long and narrow with wider base • Linear • Long and narrow WITH parallel margins • Oblong • At least twice as long as wide

  11. Leaf Shape Terms III • Obovate • Broadest above the middle • Ovate • Egg shaped, broadest below the middle • Serrate • Has teeth, think saw blade • Undulate • Has a wavy edge

  12. Leaf Shapes

  13. Other Leaf Terms • Aromatic • Pleasant smelling • Ciliate • Margin (edge) has hairs • Conifer • Doesn’t lose leaves each year (has cones) • Deciduous • Sheds all leaves each year • Samara • Type of winged fruit

  14. Tree ID • Trees of Wisconsin • http://www.uwgb.edu/biodiversity/herbarium/trees/tree_list_by_common.htm • Leaf ID • http://www.uwsp.edu/cnr/leaf/Treekey/tkframe.htm • Tree Leaf ID • http://www.fw.vt.edu/dendro/forsite/key/page1.htm

  15. Angiosperms

  16. Birch Family • Includes Birches, Alders, and Hazelnuts • Simple alternate serrated leaves • Used for some woodwork- veneers and cabinets • Pulp and some twigs used for wintergreen • Fire starting • Examples- Paper Birch, Yellow Birch.

  17. Beech Family • Includes- Beeches, Chestnuts, and OAKS • Most have simple alternate leaves • Produces a nut or an acorn • Oaks- divided into two groups • Red and White Oaks.

  18. Red Oak • Mostly pointed lobed leaves • Acorns bitter with inside of shells having hair • Examples- Red Oak and Pin Oak (deep lobes).

  19. White Oak • Mostly rounded lobed leaves • Acorns are sweet with inside of shells hairless • Examples- White Oak and Bur Oak (acorn shells are fringed, leaves slightly larger).

  20. Elm Family • Examples- American Elm, Slippery Elm, and Chinese Elm (introduced) • Leaves are simple, alternate and serrated • Pinnately veined, short stemmed • Often lopsided base • Fruit a Samara.

  21. Maple Family • Includes Maples and Box Elders • Paired winged seeds (helicopters).

  22. Maple • Examples- Sugar, Red, and Silver Maple • Leaves opposite • Leaves palmately lobed and veined.

  23. Box Elder • Pinnate Compound leaves • Pinnate veins.

  24. Ash Family • Examples- White, Green, and Black Ash • Almost always opposite and pinnately compound • Difficult for exact ID • Fruit is a Samara with a single wing.

  25. Willow Family • Consists of Willows, Poplars and Aspens • Leaves simple, alternate, deciduous • Dioecious- separate male and female trees.

  26. Willow • Examples- Black, Peachleaf, Sandbar, and Pussy Willow • Weeping Willow is an introduced species • Leaves usually longer than wide • Single bud cover • Exact identification is difficult.

  27. Poplars and Aspens • Examples- Cottonwood, Balsam Poplar, Quaking Aspen • Broad, alternate leaves with long stems • Serrated (toothed) • Multiple scale covers. • Rapid growth with soft wood.

  28. Walnut Family • Includes Walnuts, Hickories • Leaves are alternate and pinnately compound • Wood highly valued.

  29. Walnut • Examples- Black Walnut, Butternut • Fruit (nut) when ripens husk does not split • Shell corrugated • Chambered pith • Many leaflets.

  30. Hickory • Examples- Bitternut hickory, Pecan (not abundant naturally in the area) • Few leaflets • Husk splits when ripe • Shell smooth • Pith solid.

  31. Rose Family • Contains Apple, Cherry, Plum, Peach, Pear… • and Mountain Ash.

  32. Legume Family • Contains plants such as clover and alfalfa as well as Acacia trees and Honeylocusts.

  33. Linden Family • Contains Basswoods.

More Related