The document provides an overview of tree identification and classification. It discusses the key terms and classifications used in botany, including divisions of plantae (gymnosperms and angiosperms), classes (monocotyledons and dicotyledons), and the use of genus and species names in plant nomenclature. It also describes some of the morphological features used to identify trees, such as leaf and bud arrangements, margins, bases, and venation patterns.

1. Ben Grossman St. Charles County Parks and Rec. Certified Arborist #MW-4418AM Chapter 2. Tree Identification

4. Gymnosperms “naked” seeds. Pine, Fir, Cypress, Juniper, Spruce, Ginkgo, Dawn Redwood Seeds are not covered by an ovule .

8. Monocots vs. Dicots

11. American Hornbeam, Blue Beech, Ironwood, or Muscle wood?

14. Leaf and Bud Arrangement opposite — leaves occurring in pairs at the nodes alternate — leaves arranged singly at intervals along the stems whorled — leaves occurring three or more at a single node

16. Leaf Arrangement simple pinnately compound palmately compound bi-pinnately compound

17. Leaf Arrangement 2 needles/fascicle 3 needles/fascicle 5 needles/fascicle

18. Leaf Anatomy

19. Leaf Margins entire — a leaf margin that is smooth without teeth or lobes undulate — a leaf margin that is wavy serrate — a leaf margin that has pointed teeth that are directed upward doubly serrate — a serrate leaf margin where the primary teeth support another set of teeth crenate — a leaf margin that has rounded teeth lobed — a segmented leaf having pointed or rounded extensions separated by sinuses that do not extend more than halfway to the midrib sinus — the space or indentation between the lobes of a leaf blade

20. Leaf Base cuneate — wedge-shaped obtuse — rounded cordate — heart-shaped truncate — squared or abruptly cut off oblique — asymmetrical, unequally sided

21. Leaf Apices acute — slightly pointed acuminate — sharply pointed bristle-tipped — sharply pointed tip truncate — squared or abruptly cut off obtuse — rounded

22. Bud Anatomy

23. Pith Characteristics Chambered Spongy Solid Star Angular Round

25. Fruit Types berry — a simple, fleshy fruit, with seeds embedded in a pulpy mass (persimmon) drupe — a one-seeded, fleshy fruit with the seed inclosed in a stony wall (cherry, sugarberry, holly) capsule — a dry fruit which splits open into two or more parts at maturity (sourwood) legume — a dry fruit with two seams in the outer wall (black locust) nut — a hard-shelled, dry fruit, sometimes with a outer covering or husk (hickory, oak acorn, black walnut) dehiscent — the opening by slits or valves of an outer fruit covering indehiscent — an outer fruit covering that does not open by slits or valves pome — a fleshy fruit, with seeds incased by a papery wall (apple) nutlet — a small nut (riverbirch) samara — a winged, one-cell, one-seeded, dry fruit (elm; double samara — maple) multiple — a fruit formed from several flowers into a single structure having a common axis multiple of capsules -- sweetgum multiple of follicles — magnolia multiple of samaras — yellow-poplar, ash multiple of nutlets — sycamore, birch

26. Tree Growth Forms Excurrent Decurrent

27. Excurrent

28. Quiz Questions / Break

29. Green ash Fraxinus pennsylvanica

30. White ash Fraxinus americana

31. Bald cypress Taxodium distichum

32. American basswood Tilia americana

33. River birch Betula nigra

34. Ohio Buckeye Aesculus glabra

35. Southern Catalpa Catalpa bignonioides

36. Black cherry Prunus serotina

37. Eastern cottonwood Populus deltoides

38. Crabapple Malus spp.

39. Flowering Dogwood Cornus florida

40. American elm Ulmus americana

41. Siberian elm Ulmus pumila

42. Ginkgo, Maidenhair tree Ginkgo biloba

43. Golden raintree Koelreuteria paniculata

44. Hackberry Celtis occidentalis

45. Hawthorn Crataegus spp .

46. Shagbark Hickory Carya ovata

47. Honeylocust Gleditsia triacanthos

48. Kentucky coffeetree Gymnocladis dioicus

49. Littleleaf Linden Tilia cordata

50. Black locust Robinia psuedoacacia

51. Amur maple Acer ginnala

52. Boxelder Acer negundo

53. Norway maple Acer platenoides

54. Red maple Acer rubrum

55. Silver maple Acer saccharinum

56. Sugar Maple Acer saccharum

57. Mulberry Morus spp.

58. Bur oak Quercus macrocarpa

59. Northern red oak Quercus rubra

60. Pin oak Quercus palustris

61. Post oak Quercus stellata

62. Shumard oak Quercus shumardii

63. Swamp white oak Quercus bicolor

64. White oak Quercus alba

65. Osage orange Maclura pomifera

66. Callery pear Pyrus calleryana

67. Pecan Carya illinoensis

68. Persimmon Diospyros virginiana

69. Austrian Pine Pinus nigra

70. Loblolly pine Pinus taeda

71. Scotch pine Pinus sylvestris

72. Shortleaf pine Pinus echinata

73. Eastern white pine Pinus strobus

74. White poplar Populus alba

75. Eastern redbud Cercis canadensis

76. Eastern redcedar Juniperus virginiana

77. Colorado Spruce Picea pungens

78. Norway spruce Picea abies

79. Sweetgum Liquidambar styraciflua

80. Black walnut Juglans nigra

81. Black willow Salix nigra

82. Western soapberry Sapindus drummondi