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Dendrology Trees Lab 1

by: Naomi Hampton

Dendrology Trees Lab 1 FORY 3100

Marketplace > Auburn University > forestry > FORY 3100 > Dendrology Trees Lab 1
Naomi Hampton

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8/16-These are the descriptions for the trees covered in the first week of lab.
Dr. Nancy Loewenstein
Class Notes
dendrology, Trees
25 ?




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This 14 page Class Notes was uploaded by Naomi Hampton on Monday August 22, 2016. The Class Notes belongs to FORY 3100 at Auburn University taught by Dr. Nancy Loewenstein in Fall 2016. Since its upload, it has received 9 views. For similar materials see Dendrology in forestry at Auburn University.


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Date Created: 08/22/16
American beech Fagaceae Fagus grandifolia  Leaves: deciduous, simple, alternate, blades papery thin to leathery, elliptical, margins bluntly serrate, lateral veins parallel, edges roll inward  Twigs: slender, zigzag, gray, stipular scars encircle twig  Buds: 1in long, lance shaped, very sharp-pointed, 10-24 scales, lustrous tan  Flowers: unisexual, minute, lack petals, densely clustered drooping heads  Fruit: nut, yellowish brown, unevenly triangular, enclosed in spiny bur, <1in  Bark: bluish gray, very smooth, carvable, sometimes has spots  Range: Eastern U.S. to Mexico & Canada, except lower Georgia and panhandle of florida, common on mesic hardwood slopes  Site:  Form: up to 100ft high, often >3ft diameter black cherry Rosaceae Prunus serotina  Leaves: deciduous, simple, alternate, elliptical to lance shaped leaves 2-6in long, 1-1 ½ in wide, tips short-acuminate, bases rounded, margins finely toothed, upper shiny, glabrous, lower with dense hairs on midrib  Twigs: slender, smooth, reddish brown, strong aromatic odor when crushed  Buds: terminal bud blunt or pointed, scales chestnut brown  Flowers: bisexual, white, racemes 3-6in long  Fruit: drupe, dark purple to black, oval, 3/8 in diameter, bitter  Bark: reddish brown, thin, smooth, taste and smell bitter almond when bruised, then scaly plates, dark reddish black, inner bark reddish brown  Range: along roadsides, fence rows, deciduous forests, mesic hardwood forests for large trees, east to mid U.S.  Site:  Form: rapidly growing, ascending branches, 80-90ft tall, 3ft diameter devil’s walking stick Araliaceae Aralia spinosa  Leaves: deciduous, bi- or tripinnately compound, alternate, up to 4ft long, 2-3 ft wide, petiole & rachis spiny, leaflets ovate, 1-4in long, margins finely serrate, nearly glabrous  Twigs: very stout, light brown, sharp prickles, leaf scar encircles  Buds: terminal bud ½-3/4in long, several scales, lateral buds roughly ¼in triangular, flattened  Flowers: bisexual or staminate, greenish white, regular, small  Fruit: globose, berry-like drupe w/5 seeds, black, juicy, 3/8in diameter  Bark: brown, thin, very spiny, shallow flattened interwoven ridges, inner bark yellow  Range: moist sites, along streams, bottomlands, understory species, West Virginia/Kentucky to top of Florida, east to Mississippi river  Site:  Form: usually large shrub, can be tree up to 25-30ft, open spreading crown, root suckers, dense thicket mockernut hickory Juglandaceae Carya tomentosa  Leaves: deciduous, pinnately compound, alternate, 8-15 in long, leaflets usually 7, margins coarsely or finely toothed, lower surfaces pubescent w/fascicles of hairs, petioles pubescent  Twigs: stout, reddish brown, often pubescent, numerous lenticels  Buds: terminal bud ovoid, 1/2-3/8in long, hairy, scales overlapping, outer pair of reddish brown scales shed early, expose inner, silky, buff-colored scales  Flowers: similar to those of others  Fruit: nut, 1-1 ½ in long, shell rounded or elliptical, angled, husk ¼-3/8 in thick, hard, freely splitting to base  Bark: tight, with shallow furrows when young, become deeply furrowed w/pronounced interlacing ridges that form diamond-like pattern  Range: well-drained upland forests, southeast  Site:  Form: up to 90ft tall, distinctively stout, ascending branches poison-ivy Anacardiaceae Toxicodendron radicans  Leaves: alternate, pinnately trifoliate, thin, leaflets ovate to elliptic, 5-20cm long, 2-12cm wide, entire to serrate to shallowly lobed, softly hairy, lighter green beneath  Twigs: gray-brown, soft grayish-brownish hairy becoming hairless with age  Buds: naked, yellowish tan to light yellow, densely pubescent  Flowers: axillary panicles of 2-6, 2-7cm long, 5 petals, white and purplish  Fruit: dry drupe, spherical, 4-7 mm wide, grooved, tan hairless  Bark:  Range: AZ to s FL, north to s Canada and west to NE, moist to dry sites, open to shady  Site:  Form: high-climbing woody vine, trailing with erect stems post oak Fagaceae Quercus stellata  Leaves: deciduous, simple, alternate, blades 3-5 lobed, 4-6in long, 3-4in wide, deeply spreading, middle lobes largest, cross shaped, upper surfaces dark green, rough, scattered hairs, lower light gray-green  Twigs: stout, tawny, gray with age  Buds: terminal bud 1/8 in long, rounded, scales chestnut to dark brown, hairy  Flowers: similar to others  Fruit: acorn ½-1in long, broadest at base, slightly striped, scales thin, stalkless or w/ short stalk  Bark: gray-brown, irregular fissures and narrow, thick plates  Range: dry woodlands, rocky or sandy soils  Site:  Form: 70-80ft tall, crown usually large, crooked, gnarled branches red buckeye Hippocastanaceae Aesculus pavia  Leaves: deciduous, palmately compound, opposite, leaflets 5-7, lanceolate to obovate, 2 ½- 6in long, 1 ½-2 1/2 in wide, upper surfaces dark green, usually sunken veins, lower dull green, pubescent  Twigs: stout, reddish brown, lenticels raised, light brown  Buds: terminal bud ¼- ½ in long, lateral buds much smaller  Flowers: bisexual, 1-1½ in long, 4-5 petals, deep red to reddish yellow, calyx tubular, glandular hairy, 4- or 5-lobed, stamens unequal  Fruit: capsule, 1-2in diameter  Bark: gray to brown, thin, smooth to weakly fissured  Range: understory tree on rich moist soil of deciduous forests, along stream banks, coastal plain, lower Piedmont from Virginian south to northern Florida and west to Texas  Site:  Form: seldom over 20-25ft tall, 4-6 in diameter, irregular crown of short, crooked branches red maple Aceraceae Acer rubrum  Leaves: deciduous, simple, opposite, vary in shape, 3-5 lobes, sinuses v-shaped, irregularly serrate, lower surfaces whitish, red petioles  Twigs: reddish  Buds: terminal bud blunt, reddish, several visible overlapping scales  Flowers: uni- or bisexual, red, small but conspicuous  Fruit: samara, usually scarlet or brownish, conspicuous, paired, 3/4in  Bark: light gray, thin, smooth on young trees, older trees dark gray, form long narrow, scaly plates w/shallow fissures  Range: Eastern U.S., low, wet areas, along streams, flood plains, drier upland sites  Site:  Form: 60-90ft high, 2-3 ft diameter sassafras Lauraceae Sassafras albidum  Leaves: deciduous, simple, alternate, blades 3-6in long, unlobed or w 1 or 3 lobes, bases acute, margins entire, surfaces pubescent beneath when young  Twigs: slender, greenish, glaucous  Buds: terminal bud ½ in long w/3-5 keeled scales  Flowers: unisexual, yellow-green, ½ in long, sepals and petals similar, clustered at end of twigs  Fruit: drupe, dark blue, ½ in long, red stalk  Bark: dark green on young stems w/narrow reddish brown ridges, older trees gray to reddish brown, moderately fissured into flat narrow ridges  Range: fencerows, woodland margins, old fields, shade intolerant, eastern U.S.  Site:  Form: 40-50ft tall, 8-12in diameter, narrow spreading crown strawberry bush, hearts a’ bustin Celastraceae Euonymus americanus  Leaves: opposite, simple, entire, ovate to lanceolate, 3-10cm long, 1-3 cm wide, thin, bright green, margins finely serrate, serrations gland tipped, petioles 2-3 mm long or less  Twigs: opposite branched, slender, green, slightly 4-sided, turn gray  Buds: terminal buds 3-8 w/4 or 5 pairs of scales in 4 ranks, lateral buds smaller  Flowers: solitary, at end of stalks arranged over leaf blades, inconspicuous, 5 petals, yellowish-green to purplish-green, round to broadly triangular, flat floral disk  Fruit: warty and leathery capsule, lime green turning bright crimson when ripe, 1-2 cm wide, splitting into 3-5 lobes,  Bark:  Range: TX to FL, north to NY, west to s IL and MO  Site:  Form: ascending, tardily-deciduous shrub, open branched with stiffly divergent twigs sweetgum Hamamelidaceae Liquidambar styraciflua  Leaves: deciduous, simple, alternate, blades palmately lobed, 3-6 in long, margins toothed, petioles 4-5in long, foliage w/ pleasant fragrance when bruised  Twigs: frequently develop corky ridges, green to brown, lenticels raised, dark  Buds: terminal bud ovoid, pointed, glossy, fringed, overlapping scales  Flowers: unisecual, petals absent, stainate flowers greenish tallow, in clusters on terminal spike  Fruit: spiny ball of many capsules, persistent, woody, 1-1 ½ in diameter  Bark: gray, furrowed, forming narrow, rounded, scaly ridges  Range: moist, rich, alluvial soils, invades cutover hardwood stands and pine plantations in upland sites, eastern U.S., some in lower Ohio, Indiana  Site:  Form: commonly 80ft to over 100ft high, 2-4 ft diameter, long cylindrical trunk, oblong conical crown water oak Fagaceae Quercus nigra  Leaves: deciduous, simple, alternate, blades thin, widest at tip and tapering to long narrow base, sometimes lobed, bristle tipped, upper surface smooth, dull green, lower smooth except tufts of hair at veins  Twigs: slender, grayish brown, smooth, dull  Buds: terminal bud 1/4 in long, pointed, strongly angled, scales reddish brown, hairy  Flowers: similar to those of others  Fruit: acorn, oval to round, ½ in long or less, cup saucer-shaped  Bark: smooth, gray, shallowly furrowed on older trunks  Range: Southeastern U.S., wide range of habitats, flood plains, bottomlands, fence rows, mixed forests, well-drained uplands  Site:  Form: 60-100ft tall white oak Fagaceae Quercus alba  Leaves: deciduous, simple, alternate, blades widest above middle, 5-9 in long, 2-4in wide, 7- 10 rounded lobes, margins entire, surfaces hairy when young but smooth with age  Twigs: moderately stout, dark red-brown  Buds: small, broadly ovate or rounded, clustered at end of twigs, bud scales smooth, reddish  Flowers: unisexual, staminate in hanging catkins, pistillate w/3-lobed stigmas, numerous scales form acorn cup  Fruit: acorn, ¾ in long, cup bowl-like, scales knobby, tightly appressed  Bark: light ashy gray, thick, shallow lengthwise fissures separate into long, broad, scaly plates, often loose and flaky  Range: deep, fertile, well-drained soils w/other oaks and hickories, eastern U.S.  Site:  Form: 80-100ft tall, 3-4ft diameter, widely spreading branches (especially when in open) Yellow-poplar Magnoliaceae Liriodendron tulipifera  Leaves: deciduous, simple, alternate, 5-6in long, blades w/4-6 lobes, tips abruptly truncated or with broad shallow sinus  Twigs: red-brown, lenticels pale, circular to elongated  Buds: terminal bud about ½ in long, flattened, valvate w/2 scales, dark, glaucous  Flowers: bisexual, greenish yellow, blotched w/ orange, tulip-shaped, 2-3in across, 5 petals, 3 sepals, many stamens and pistils, spirally arranged  Fruit: cone-like structure, narrow, light brown, numerous dry, winged samaras  Bark: light gray, smooth on young trunks w/ black V markings below branches, older bark gray, thick, deeply furrowed  Range: moist, well-drained sites, stream bottoms, lower upland slopes, mesic forest coves, intolerant of shade, eastern U.S.  Site:  Form: well-self-pruned, straight trunk, conical crown


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