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Arboretum Landscape Teaching Aid Series: Know, Know, Know Your Oaks, This Is How They Grow (3.19509)
Date: 1940 – 1960Creator: Watts, May Theilgaard
Type: Drawing
Description:Primarily textual teaching aid depicting Arboretum landscape. This material describes the growth direction of five types of oak tree branches. Illustrations depict small human-shaped figures that indicate tree branch growth with arms and run diagonally down the center of the image with descriptive text on either side.
Header: Know, know, know your oaks, / This is how they grow:
Text and illustrations from top to bottom:
- Red Oak, [illustration of figure with arms raised overhead] (arms held to indicate acute-angled branching)
- White Oak, [illustration of figure with arms raised to shoulders] (arms indicate right-angled branching)
- Bur Oak, [illustration of figure with arms raised to shoulder and elbows bent down] (elbows indicated gnarled branching)
- Pin Oak, [illustration of figure with arms extended at sides] (deflected lower branches)
- and Hill's, untidy below. [illustration of figure with arms raised to shoulder, elbows bent down, and fingers splayed] (fingers indicate deflected, dead, lower branches)
Extent: 1 sheet
Winter Twigs, page 3 (3.24632)
Date: 1943Creator: Watts, May Theilgaard
Type: Drawing
Description:Page 3 of 4, illustrations showing identifying characteristics of different types of winter twigs with identifying labels and text above each, created to accompany "Winter Twigs" article featured in Morton Arboretum Bulletin of Popular Information. Some original identifying text has detached and is no longer present.
Illustrations are divided into seven sections, depicted from top to bottom, left to right:
1) TREES WITH THORNS
- Honey locust -- Gleditsia triacanthos
- Black locust -- Robinia pseudo-acacia
- Osage orange -- Maclura pomifera
- Hawthorn -- Crataegus
- Wild crab -- Malus ioensis [and] Malus coronaria
- Wild plum : Prunus americana [and] Prunus nigra
- European larch -- Larix decidua
- Tamarack -- Larix laricina
- Ginkgo -- Ginkgo biloba
- Black Oak Group
- Red oak -- Quercus borealis maxima
- Northern pin oak -- Quercus ellipsoidalis
- Pin oak -- Quercus palustris
- White Oak Group
- Bur Oak -- Quercus macrocarpa
- White oak -- Quercus alba
- Swamp white oak -- Quercus bicolor
- Tulip [tree] -- Liriodendron tulipifera
- Sycamore -- Platanus occidentalis
- Kentucky coffee tree -- Gymnocladus dioicus
- Tree of heaven -- Ailanthus altissima
- Staghorn sumac -- Rhus typhina
- Smooth sumac -- Rhus glabra
- Willow -- Salix
Extent: 1 sheet
Landscape with Houses and Trees (3.24647)
Date: 20th centuryCreator: Watts, May Theilgaard
Type: Drawing
Description:Illustration of a hilly landscape with five houses, pasture, fences, farm land, a lake, a stream, a bridge, roads, a water wheel, and many trees. Trees are drawn to indicate general shape and each tree is identified. NATURE STUDY GUILD is stamped in purple on piece of board and glued at top right.
Trees depicted:
White pine -- Spruce -- Austrian pine -- Pear -- Sassafras -- Sumac -- Black willows -- Box elder --
Apple -- Red cedar -- Norway pine -- Yellow birch -- Black walnut -- Sour gum -- White cedar -- Poison sumac -- Tamarack -- White ash -- Chestnut oak -- Blue ash -- Red oak -- Beech -- Shagbark hickory -- Mockernut hickory -- Red maple -- Pignut hickory -- Wafer ash -- River birch -- Buckeye --
Shingle oak -- Bur oak -- Linden -- Cherry birch -- Shadbush -- Hill's oak -- White oak -- Sugar maple -- Black locust -- Black cherry -- Large-toothed poplar -- Cottonwood -- Waahoo -- Trembling aspen -- Witch-hazel -- Flowering dogwood -- Ironwood -- Chestnut -- Pin cherry -- Choke cherry -- Wild crab -- Wild plum -- Redbud -- Water beech -- Balm of Gilead -- Red mulberry -- Tulip tree -- Sycamore -- Bitternut hickory -- Slippery elm -- Butternut -- Swamp white -- Kentucky coffee tree -- Red ash -- Honey locust -- Hawthorne -- Lombardy poplars -- European alder -- Black ash -- Osage orange hedge -- Ailanthus -- Paw-paw -- Hackberry -- White birch -- American elm -- Catalpa -- Norway maple -- Weeping willow -- White wilow -- Pin oak -- Horse chestnut -- Mountian ash -- Pussy willow -- Fir -- Ginkgo -- Silver maple -- Scotch pine -- Silver poplar
Extent: 1 sheet
Twelve Oaks (3.24795)
Date: 1944Creator: Watts, May Theilgaard
Type: Drawing
Description:Illustration of leaf, acorn, and twigs with buds for twelve different types of oak, created to accompany "The Oaks Of The Morton Arboretum" article featured in Morton Arboretum Bulletin of Popular Information. Drawings are divided into two categories and depicted in columns with descriptive text.
Header: TWELVE OAKS
Leaves, acorns, and twigs as depicted in two categories, from left to right, top to bottom:
Category 1: The Black Oak Group
- Eastern Red Oak - Quercus borealis
- leaf - dull above, glabrous beneath, lobes narrowing toward margin, sinuses about half-way to mid-rib.
- acorn - shallow cup, saucer-shaped, with glossy tight scales, white kernel
- twig with buds - buds red brown, not angled; twigs red-brown, smooth
- Northern Pin - Quercus ellipsoidalis
- leaf - lustrous, deeply lobed, lobes widening toward margin, base truncate or broad-cunate, 5 to 7 lobed
- acorn - top-shaped cup, enclosing half of nut, yellow kernel
- twig with buds - buds red-brown, obtuse at tip; twigs red-brown
- Black - Quercus velutina
- leaf - leathery, thick, petioles yellow, sinuses varying from shallow to deep
- acorn - bowl-like cup, scales form fringe at margin, yellow kernel
- twig with bids - buds pale woolly, strongly 5-sided; twigs red-brown, lenticels conspicuous
- Pin - Quercus palustris
- leaf - thin, lustrous, 5 to 7 lobed, few-toothed, slender petioles, base cuneate
- acorn - saucer-shaped cup, scales with free tips, nut often striped
- twigs with buds - side buds at wide angle; twigs red-brown, smooth
- Shingle - Quercus imbricaria
- leaf - lustrous above, pubescent below, persistent in Winter
- acorn - stalked cup, bowl-like, thin
- twig with buds - buds brown smooth; twigs smooth, gray-brown
- Willow - Quercus phellos
- leaf - lustrous, nearly sessile, acute at both ends
- acorn - talked cup, shallow, thin
- twig with buds - buds brown; twigs fine
- White - Quercus alba
- leaf - glabrous, with deep sinuses, often persistent in winter
- acorn - bowl-like cup, with thickened warty scales, nut edible
- twig with buds - buds red-brown, smooth; twigs red-brown, later ashy-gray; lenticels pale, conspicuous
- Bur - Quercus macrocarpa
- leaf - usually with "wasp-waist" - thick, smooth above, pale-pubescent beneath
- acorn - cup fringed, covering half or more of nut, larger in South
- twig with buds - buds pale-woolly, gray-tan; twigs gray, later corky-ridged
- English - Quercus robur
- leaf - auricled base, nearly sessile
- acorn - cup enclosing 1/4 to 1/3 of nut, long-stemmed
- twig with buds - buds, brown; side buds divergent; twigs brown
- Chinquapin - Quercus muehlenbergii
- leaf - thick, shiny above, pubescent beneath, somewhat sharply-toothed, rounded base, slender petiole
- acorn - cup bowl-shaped, thin, scales indistinct
- twig with buds - buds chestnut-brown; twigs orange-brown
- Basket - Quercus michauxii
- leaf - crenate margin, pale-pubescent beneath, cunate base, 10 to 14 pairs of teeth
- acorn - cup bowl-shaped, thickened, scales wedge-shaped
- twig with buds - buds chestnut-brown, twigs orange-brown
- Swamp White - Quercus bicolor
- leaf - thick, firm, coarsely-toothed, shining above, pale-fomentose beneath, 6 to 10 pairs of teeth, often persistent in winter
- acorn - usually paired, cup bowl-shaped, slightly-fringed, long-stalked
- twigs with buds - buds brown; twigs yellow-brown, with pale, raised lenticels
Extent: 1 sheet
Oaks of the Arboretum (3.24796)
Date: 1944Creator: Watts, May Theilgaard
Type: Drawing
Description:Illustrations of five species of oak, created to accompany "The Oaks of The Morton Arboretum" article featured in Morton Arboretum Bulletin of Popular Information. Illustrations include full tree outline in winter. Each oak is accompanied with descriptive text including its scientific name, soil requirements, branch, and bark descriptions.
Trees and text depicted from left to right, top to bottom:
- Eastern Red Oak -- Quercus borealis maxima
- smooth upper parts; acute-angled branching, dark ridged bark, on well-drained upland
- Pin Oak -- Quercus palustris
- straight central shaft; payramidal shape; short spur-like twigs; dark ridged bark; in moist lowland
- Northern Pin Oak -- Quercus ellipsoidalis
- smooth upper parts; leaves persistent in winter; deflected dead lower branches; on well-drained upland
- White Oak -- Quercus alba
- horizontal branching; leaves persistent in winter; scaly whitish bark; on well-drained upland
- Bur Oak -- Quercus macrocarpa
- gnarled branches; corky ridges; gray, ridged bark; on rich bottom-land
Extent: 1 sheet
Tree Portraits: Hill's Oak (3.31787)
Date: 1940 – 1950Creator: Watts, May Theilgaard
Type: Painting
Description:Color silhouette of a Hill's Oak tree, including a nature print outline of a leaf, drawings of a winter twig and fruit, and descriptive text.
Header: HILLS OAK
Drawings and text, from top to bottom, left to right:
- leaf: [arrow] shining surface
- tree
- twig
- fruit
Extent: 1 sheet
Trees Native To This Region (3.33823)
Creator: Watts, May Theilgaard
Type: Drawing
Description:A large illustration depicting a cross-section of hill with several types of trees growing down its slope. The trees are drawn in silhouette and are grouped into four categories based on location. Each tree is also accompanied by a line of color across the top indicating the color of its leaves in Fall as well as an outline of its leaf below.
Header:
- TREES NATIVE TO THIS REGION
- THE COLOR LINE OVER EACH TREE / INDICATES ITS CHARACTERISTIC / FALL COLORING. NATIVE TREES / GIVE US THE BEST COLOR
- TREES OF OUR UPLANDS
- witch-hazel -- white oak -- red oak -- Hill's oak -- sugar maple -- ironwood -- shadbush -- shagbark hickory -- black cherry -- blue ash -- bur oak -- white ash -- linden
- TREES of the EDGE of the FOREST
- aspen -- sumac -- choke cherry -- wild crabapple -- hawthorn -- wild plum
- TREES of our LOWLANDS
- black ash -- slippery elm -- American elm -- walnut -- hackberry -- cottonwood -- black willow -- silver maple
- TREES of our SWAMPS
- [sour gum] tupelo -- yellow birch -- tamarack -- red maple -- poison sumac
Extent: 1 sheet
Students in a Junior Forestry class, posing with a leaf chart (3.34126)
Type: Photographic image
Description:School children participate in a Junior Forestry class with May T. Watts at the Morton Arboretum. A girl and a boy hold a leaf chart that features oak, maple, and sumac leaves.
Extent: 1 slide
Quercus ellipsoidalis (Hill's oak), bud detail (3.38447)
Type: Photographic image
Description:Quercus ellipsoidalis (Hill's oak), detail of pointed buds, lateral scattered near tip and a cluster of four at end of pale grey twig
Extent: 1 slide
Quercus ellipsoidalis (Hill's oak), habit, summer (3.38448)
Date: July 17 1973Type: Photographic image
Description:Quercus ellipsoidalis (Hill's oak), habit, bare lower branches and densely covered with green leaves near canopy amongst trees and grasses
Extent: 1 slide
Quercus ellipsoidalis (Hill's oak), habit, spring (3.38449)
Date: April 1993Creator: Nachel, Jim
Type: Photographic image
Description:Quercus ellipsoidalis (Hill's oak), habit, dried orange-brown leaves remaining on young tree and some on ground and in plant bed between wall and road adjacent to greenhouses at The Morton Arboretum
Living Collections Accession Number: 571-81*2
Location on grounds using The Morton Arboretum grid map: H-40/34-30 (near Greenhouse)
Extent: 1 slide
Quercus ellipsoidalis (Hill's oak), habit, spring (3.38450)
Date: April 1993Creator: Nachel, Jim
Type: Photographic image
Description:Quercus ellipsoidalis (Hill's oak), habit, dried orange-brown leaves remaining on young tree and some on ground, road, and in plant bed located in front of loading dock next to Research Building and adjacent to the greenhouses at The Morton Arboretum
Living Collections Accession Number: 571-81*2
Location on grounds using The Morton Arboretum grid map: H-40/34-30 (near Greenhouse)
Extent: 1 slide
Quercus ellipsoidalis (Hill's oak), habit, summer (3.38451)
Date: August 1994Creator: Nachel, Jim
Type: Photographic image
Description:Quercus ellipsoidalis (Hill's oak), young tree with dark green leaves on densely covered branches, deer fence on trunk and wood chip mulch ring around base in grassy field amongst collection
Living Collections Accession Number: 218-81*3
Location on grounds using The Morton Arboretum grid map: K-16 / 78-31 (Fagaceae Collection)
Extent: 1 slide
Quercus ellipsoidalis (Hill's oak), young tree and man (3.38452)
Date: August 1994Creator: Nachel, Jim
Type: Photographic image
Description:Quercus ellipsoidalis (Hill's oak), habit, young tree with dark green leaves on densely covered branches, deer fence on trunk and man looking at notes in hand standing next to wood chip mulch ring around base in grassy field amongst collection
Living Collections Accession Number: 218-81*3
Location on grounds using The Morton Arboretum grid map: K-16 / 78-31 (Fagaceae Collection)
Extent: 1 slide
Quercus ellipsoidalis (Hill's oak), red leaves and branches (3.38453)
Type: Photographic image
Description:Quercus ellipsoidalis (Hill's oak), section of mature trunk detail with ridged bark on thick branches and red leaves with drab tone amongst trees
Extent: 1 slide
Quercus ellipsoidalis (Hill's oak), habit, early spring (3.38454)
Date: March 19 1976Creator: Stickney, William S.
Type: Photographic image
Description:Quercus ellipsoidalis (Hill's oak), habit, dried orange-brown leaves remaining on almost bare tree in open grassy field near Klein Road in SECT 27, Wayne Township, DuPage County
Extent: 1 slide
Quercus ellipsoidalis (Hill's Oak), acorn cap (3.46320)
Date: October 6 2012Creator: Hedborn Jr., Edward A.
Type: Photographic image
Description:Quercus ellipsoidalis (Hill's Oak), acorn cap
Quercus ellipsoidalis (Hill's Oak), bark, mature (3.46321)
Date: April 18 2009Creator: Brown, Deborah J. G.
Type: Photographic image
Description:Quercus ellipsoidalis (Hill's Oak), bark, mature
Quercus ellipsoidalis (Hill's Oak), bark, mature (3.46322)
Date: November 7 2009Creator: Hedborn Jr., Edward A.
Type: Photographic image
Description:Quercus ellipsoidalis (Hill's Oak), bark, mature
Quercus ellipsoidalis (Hill's Oak), bark, trunk (3.46323)
Date: November 3 2016Creator: Brown, Deborah J. G.
Type: Photographic image
Description:Quercus ellipsoidalis (Hill's Oak), bark, trunk
Quercus ellipsoidalis (Hill's Oak), bark, trunk (3.46324)
Date: November 3 2016Creator: Brown, Deborah J. G.
Type: Photographic image
Description:Quercus ellipsoidalis (Hill's Oak), bark, trunk
Quercus ellipsoidalis (Hill's Oak), bud, lateral (3.46325)
Date: September 12 2009Creator: Hedborn Jr., Edward A.
Type: Photographic image
Description:Quercus ellipsoidalis (Hill's Oak), bud, lateral
Quercus ellipsoidalis (Hill's Oak), bud, lateral (3.46326)
Date: November 7 2009Creator: Hedborn Jr., Edward A.
Type: Photographic image
Description:Quercus ellipsoidalis (Hill's Oak), bud, lateral
Quercus ellipsoidalis (Hill's Oak), bud, terminal (3.46327)
Date: August 16 2014Creator: Hedborn Jr., Edward A.
Type: Photographic image
Description:Quercus ellipsoidalis (Hill's Oak), bud, terminal
Quercus ellipsoidalis (Hill's Oak), bud, terminal (3.46328)
Date: August 16 2014Creator: Hedborn Jr., Edward A.
Type: Photographic image
Description:Quercus ellipsoidalis (Hill's Oak), bud, terminal
Quercus ellipsoidalis (Hill's Oak), bud, terminal (3.46329)
Date: September 23 2009Creator: Hedborn Jr., Edward A.
Type: Photographic image
Description:Quercus ellipsoidalis (Hill's Oak), bud, terminal
Quercus ellipsoidalis (Hill's Oak), bud, terminal (3.46330)
Date: September 12 2009Creator: Hedborn Jr., Edward A.
Type: Photographic image
Description:Quercus ellipsoidalis (Hill's Oak), bud, terminal
Quercus ellipsoidalis (Hill's Oak), flower, pistillate (3.46331)
Date: September 12 2009Creator: Hedborn Jr., Edward A.
Type: Photographic image
Description:Quercus ellipsoidalis (Hill's Oak), flower, pistillate
Quercus ellipsoidalis (Hill's Oak), flower, pistillate (3.46332)
Date: November 7 2009Creator: Hedborn Jr., Edward A.
Type: Photographic image
Description:Quercus ellipsoidalis (Hill's Oak), flower, pistillate
Quercus ellipsoidalis (Hill's Oak), fruit, immature (3.46333)
Date: August 16 2014Creator: Brown, Deborah J. G.
Type: Photographic image
Description:Quercus ellipsoidalis (Hill's Oak), fruit, immature
Quercus ellipsoidalis (Hill's Oak), fruit, immature (3.46334)
Date: August 16 2014Creator: Hedborn Jr., Edward A.
Type: Photographic image
Description:Quercus ellipsoidalis (Hill's Oak), fruit, immature
Quercus ellipsoidalis (Hill's Oak), fruit, immature (3.46335)
Date: August 16 2014Creator: Hedborn Jr., Edward A.
Type: Photographic image
Description:Quercus ellipsoidalis (Hill's Oak), fruit, immature
Quercus ellipsoidalis (Hill's Oak), fruit, mature (3.46336)
Date: August 16 2014Creator: Hedborn Jr., Edward A.
Type: Photographic image
Description:Quercus ellipsoidalis (Hill's Oak), fruit, mature
Quercus ellipsoidalis (Hill's Oak), fruit, mature (3.46337)
Date: August 16 2014Creator: Hedborn Jr., Edward A.
Type: Photographic image
Description:Quercus ellipsoidalis (Hill's Oak), fruit, mature
Quercus ellipsoidalis (Hill's Oak), fruit, mature (3.46338)
Date: September 23 2009Creator: Hedborn Jr., Edward A.
Type: Photographic image
Description:Quercus ellipsoidalis (Hill's Oak), fruit, mature
Quercus ellipsoidalis (Hill's Oak), habit, fall (3.46339)
Date: November 3 2016Creator: Brown, Deborah J. G.
Type: Photographic image
Description:Quercus ellipsoidalis (Hill's Oak), habit, fall