- S
- Samara—An indehiscent winged fruit such as that of maple.
- Sapwood—The recently formed, usually light colored wood, lying outside of the heartwood.
- Scabrous—Rough, with stiff, bristly hairs.
- Scales—The small, modified leaves which protect the growing-point of a bud or the part of a cone which bears the seeds. The small flakes into which the other bark of a tree divides.
- Scurfy—Covered with small bran-like scales.
- Serrate—Having sharp teeth on margin.
- Sessile—Seated; without a stalk.
- Sheath—A tubular envelope or covering such as surround the base of pine-needles.
- Silky—Covered with long, soft, straight, fine hairs.
- Simple—Consisting of one part, not compound.
- Sinus—The cleft or opening between two lobes.
- Sinuate—Wavy.
- Softwood—A general term given conifers, the wood of which may or may not be of low density.
- Stamen—Male organ of flower. Consists of a pollen-bearing anther on a filament.
- Stipule—A leaf-appendage at the base of the leaf-stalk.
- Stipule-scar—The scar left by the fall of the stipule.
- Stolon—A runner or basal branch that may root.
- Striate—Marked with fine elongated ridges or lines.
- Striations—Long narrow lines or ridges.
- Strobile—A fruit marked by overlapping scales as in the pine, birches, etc.
- Sucker—A shoot arising from an underground bud.
- Superposed—Said of buds when they are arranged one above the other.
- Symmetrical—Regular as to the number of parts. Having the same number of parts in each circle.
- T
- Terminal—Located at the outer end.
- Thorn—A stiff, woody, sharp-pointed projection as found on locust; a spine.
- Tolerant—Applied to trees which endure certain factors, particularly shade.
- Tomentose—Densely pubescent; hairy. Covered with matted-hairs.
- Tomentum—A dense layer of woolly hairs.
- Truncate—Ending abruptly, as if cut off at the end.
- Tufted—Growing in clusters.
- U
- Unisexual—Consisting of one sex only, either staminate or pistillate.
- V
- Valvate—Said of buds in which the scales merely meet without overlapping. Fruit opening by valves.
- Veins—Threads of fibro-vascular tissue in leaves or other organs.
- W
- Whorl—A group of three or more similar organs, as leaves or buds, arranged about the same place of attachment.
- Whorled—Borne in a whorl.
Index
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
- A
- Acacia berlandieri 123
- Acacia, catclaw 85
- Acacia farnesiana, sweet 123
- Acacia greggii 85
- Acer barbatum 126
- Acer grandidentatum 126
- Acer grandidentatum var. sinuosum 126
- Acer negundo 100
- Acer rubrum 99
- Acer saccharinum 98
- Adelia, common 116
- Aesculus glabra 101
- Aesculus pavia 101
- Ailanthus altissima 125
- Alder, hazel, speckled 123
- Alnus rugosa 123
- Anacahuita 128
- Anama 128
- Anaqua 128
- Apple, hedge 69
- Aralia spinosa 104
- Arbutus texana 129
- Arizona cypress 122
- Arrow-wood 125
- Ash, Berlandier 128
- Ash, Carolina 113
- Ash, green 115
- Ash, Mexican 128
- Ash, poison 95
- Ash, prickly 92, 104
- Ash, Texas 128
- Ash, wafer 93
- Ash, water 113
- Ash, white 114
- Ash juniper 26
- Asimina triloba 72
- B
- Baldcypress 25
- Baretta 124
- Basswood, American 103
- Basswood, Carolina 126
- Basswood, Florida 126
- Bayberry, Southern 123
- Beaded locust (Sophora) 124
- Bear berry 124
- Beech, American 41
- Beech, blue 38
- Beech, water 38
- Betula, nigra 40
- Birch, river (red) 40
- Bitternut hickory 30
- Blackhead, ebony 84
- Blackgum 105
- Blackhaw, rusty 121
- Bois-d’arc 69
- Boxelder 100
- Buckeye, Ohio 101
- Buckeye, red 101
- Buckthorn 127
- Buckthorn, wooly 109
- Buffaloberry 129
- Bumelia, buckthorn, gum, elastic 109
- Bumelia lanuginosa 109
- Bumelia lanuginosa var. rigida 109
- Bumelia, lycioides 109
- Bumelia, Texas 127
- Burning bush (Euonymous) 125
- Buttonbush, common 120
- Buttonwood (sycamore) 77
- C
- Capote 127
- Carpinus caroliniana 38
- Carya aquatica 31
- Carya cordiformis 30
- Carya illinoensis 29
- Carya ovata 32
- Carya texana 34
- Carya tomentosa 33
- Castanea pumila 42
- Catalpa, northern 118
- Catalpa, speciosa 118
- Catalpa, western 118
- Cedar, eastern red 27
- Cedar, mountain 26
- Celtis laevigata 67
- Celtis, occidentalis 66
- Cephalanthus occidentalis 120
- Cercis canadensis 88
- Cherry, black 82
- Cherry, southwestern black 82
- Chicle 127
- Chilopsis linearis 119
- Chinaberry 125
- China-tree, wild 102
- Chinkapin, Allegheny 42
- Chionanthus virginicus 117
- Chittamwood 125
- Coral bean 124
- Cordia boisseri 128
- Corkwood 35
- Cornus florida 107
- Cotinus obovatus 126
- Cottonwood, eastern 36
- Crataegus 78
- Crataegus opaca 79
- Cupressus arizonica 122
- Cypress (baldcypress) 25
- D
- Desertwillow 119
- Devils-walkingstick 104
- Diospyros texana 128
- Diospyros virginiana 110
- Dogwood, flowering 107
- E
- Ebony, Texas (blackbead) 84
- Ehretia anacua 128
- Elastic, gum 109
- Elaeagnus angustifolia 129
- Elm, American 61
- Elm, cedar 63
- Elm, Chinese 129
- Elm, red 64
- Elm, Siberian 129
- Elm, slippery 64
- Elm, water 65
- Elm, white 61
- Elm, winged 62
- Euonymus atropurpureus 125
- Euonymus bungeanus 129
- F
- Fagus grandifolia 41
- Farkleberry 108
- Fir, Douglas 24
- Forestiera acuminata 116
- Fraxinus americana 114
- Fraxinus berlandieriana 128
- Fraxinus caroliniana 113
- Fraxinus pennsylvanica 115
- Fraxinus texensis 128
- Fringetree, white 117
- G
- Gleditsia aquatica 89, 90
- Gleditsia texana 89
- Gleditsia triacanthos 89
- Grancy-gray beard 117
- Great leadtree 124
- Gregg leadtree 86, 124
- Guaiacum 124
- Guajillo 123
- Guayacan 124
- Gum, black 105
- Gum, cotton 106
- Gum, elastic 109
- Gum, red 76
- Gum, sour 105
- Gum, sweet 76
- Gum, tupelo 106
- H
- Hackberry 66
- Hackberry, sugar 67
- Halesia diptera 112
- Hamamelis virginiana 75
- Haw 78
- Haw, rusty black 121
- Hawthorn 78
- Hawthorn, riverflat 79
- Hazel, alder 123
- Helietta parvifolia 124
- Hercules-club 92, 104
- Hickory, bigbud 33
- Hickory, bitternut 30
- Hickory, black 34
- Hickory, mockernut 33
- Hickory, pignut 30
- Hickory, shagbark 32
- Hickory, water 31
- Hickory, white 33
- Holly, American 96
- Honeylocust 89
- Hophornbeam, eastern 39
- Hoptree, common 93
- Hornbeam, American 38
- Horse-sugar 111
- Huckleberry, tree 108
- J
- Judas tree 88
- Juglans, microcarpa 28
- Juglans, nigra 28
- Juniper, alligator 122
- Juniper, ashe 26
- Juniper, drooping 122
- Juniper, Mexican mountain cedar 26
- Juniper, one seed 122
- Juniper, Rocky Mountain 122
- Juniper, weeping 122
- Juniperus ashei 26
- Juniperus deppeana 122
- Juniperus flaccida 122
- Juniperus monosperma 122
- Juniperus scopulorum 122
- Juniperus virginiana 27
- K
- Knackaway 128
- L
- Laurel, cherry 83
- Laurelcherry, Carolina 83
- Leadtree, Gregg 86
- Leadtree, Mexicana, great 124
- Leitneria floridana 35
- Leucaena greggii 86, 124
- Leucaena pulverulenta 86, 124
- Leucaena retusa 86, 124
- Linden, American 103
- Liquidambar styraciflua 76
- Locust, beaded 124
- Locust, black 91
- Locust, honey 89
- Locust, pink 124
- Locust, water 90
- Locust, yellow 91
- M
- Maclura pomifera 69
- Madrone, Texas 129
- Magnolia, evergreen 70
- Magnolia, grandiflora 70
- Magnolia, Southern 70
- Magnolia, sweetbay 71
- Magnolia, virginiana 71
- Maple, Florida 126
- Maple, mountain, or sugar 126
- Maple, red 99
- Maple, silver 98
- Maple, soft 98, 99
- Maple, Southern sugar 126
- Maple, Uvalde bigtooth 126
- Mayhaw 79
- Melia azedarach 125
- Mesquite, honey 87
- Mimosa 86, 124
- Morus alba 68
- Morus microphylla 68
- Morus rubra 68
- Mulberry, red 68
- Mulberry, Texas 68
- Mulberry, white 68
- Myrica cerifera 123
- Myrtle, sweet 123
- Myrtle, wax 123
- O
- Oak, basket 59
- Oak, black 45
- Oak, blackjack 47
- Oak, bluejack 50
- Oak, bur 57
- Oak, chestnut 59
- Oak, chinkapin, chestnut 60
- Oak, cow 59
- Oak, Durand (white) 54
- Oak, Emory 51
- Oak, Graves 44
- Oak, gray 51
- Oak, live 52
- Oak, Mexican blue 51
- Oak, Mohrs 53
- Oak, mossy-cup 57
- Oak, overcup 58
- Oak, pin 48, 49
- Oak, post 56
- Oak, red 46
- Oak, sandjack 50
- Oak, shin 53
- Oak, Shumard 43
- Oak, Spanish 46
- Oak, Southern red 46
- Oak, spotted 43
- Oak, swamp chestnut 59
- Oak, swamp post oak 58
- Oak, Texas 44
- Oak, water 48, 49
- Oak, water white 58
- Oak, white 55
- Oak, willow 49
- Old man’s beard, 117
- Olive, Russian 129
- Olive, Texas wild 128
- Orange, mock 83
- Osage-orange 69
- Ostrya virginiana 39