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Brown, Deborah J.G.
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The Morton Arboretum
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Collection of May Theilgaard Watts materials
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Abies Mill. (fir)
Acer campestre L. (hedge maple)
Acer miyabei Maxim. (Miyabe’s maple)
Acer negundo L. (boxelder)
Acer platanoides L. (Norway maple)
Acer rubrum L. (red maple)
Acer saccharinum L. (silver maple)
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Objects (20 results)

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Winter Buds, #1 (3.19511)

Date: 1940 – 1950
Creator: Watts, May Theilgaard
Type: Drawing
Description:Large poster depicting 16 types of winter buds, bound in green tape.

Illustrations and text, from left to right, top to bottom:
  • white ash
  • black ash
  • blue ash
  • red ash
  • sugar maple
  • Norway maple
  • silver maple
  • box-elder
  • horse-chestnut
  • ohio buckeye
  • flowering dogwood
  • catalpa
  • ironwood
  • gray birch
  • European white birch
  • European alder

Extent: 1 sheet

Winter Twigs, page 2 (3.24631)

Date: 1943
Creator: Watts, May Theilgaard
Type: Drawing
Description:Page 2 of 4, illustrations showing identifying characteristics of different types of winter twigs, created to accompany "Winter Twigs" article featured in Morton Arboretum Bulletin of Popular Information.  Original identifying text has detached and is mostly missing.

Illustrations are divided into two sections, depicted from top to bottom, left to right:

1) [Original text] TREES WITH OPPOSITE BRANCHING
  • White ash -- Fraxinus americana
  • Black ash -- Fraxinus nigra
  • Blue ash -- Fraxinus quadrangulata
  • Red ash -- Fraxinus pennsylvanica
  • Sugar maple -- Acer saccharum
  • Norway maple -- Acer platanoides
  • Red maple -- Acer rubrum
  • Silver maple -- Acer saccharinum
  • Box-elder -- Acer negundo
  • Horse-chestnut -- Aesculus hippocastanum
  • Ohio buckeye -- Aesculus glabra
  • Flowering dogwood -- Cornus florida
  • Catalpa -- Catalpa speciosa  [and] Catalpa bignonioides
2) [Original text] TREES WITH CATKINS PRESENT IN WINTER 
  • Ironwood -- Ostrya virginiana
  • Gray birch -- Betula populifolia
  • [as a single illustration:]
    • Yellow birch -- Betula lutea
    • River birch -- Betula nigra
    • Cherry birch -- Betula lenta
    • Paper birch -- Betula papyrifera
    • European white birch -- Betula pendula
  • European alder -- Alnus glutinosa
Some terms and text originally adhered to board have detached and are housed with art.
Extent: 1 sheet

Landscape with Houses and Trees (3.24647)

Date: 20th century
Creator: 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

Forest Nature Trail Guide, page 13 illustrations and layout (3.24670)

Date: 1946
Creator: Watts, May Theilgaard
Type: Drawing
Description:Original illustrations and layout for page 13, excluding text, for The Morton Arboretum Forest Nature Trail Guide booklet. Key lines included.
Illustrated stumps with numbers indicate points of interest along trail as seen on trail map.

Tree stump #34: Ironwood or Hop Hornbeam
Identifying characteristics for leaves, seeds, and fruits illustrated to the right.

Tree stump #35: Are you as Smart as a Yellow-bellied Sapsucker?
Illustration of a red oak trunk and sugar maple trunk to the right - sugar maple includes drawing of yellow-bellied sapsucker pecking rings of holes in the maple's trunk for sap.

Tree stump #36: Where Does the Water in These Streams Go?
Map of DuPage River, including West Branch and East Branch at Arboretum near top right, the Des Plaines River center right, the Kankakee River center bottom, and the Illinois River center left with arrow pointing left labeled "to Mississippi". 

Tree stump #37: The Thickness of Twigs
Identifying characteristics of ironwood and sumac twigs illustrated to the right.

Tree stump #38: Blue Ash
Identifying characteristics for leaves and twig illustrated to the right.
 
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
Additional text, at bottom left:
  • THE COLOR LINE OVER EACH TREE / INDICATES ITS CHARACTERISTIC / FALL COLORING. NATIVE TREES / GIVE US THE BEST COLOR
Types of trees depicted:
  • 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

Education charts: Twigs, #2 (3.34234)


Type: Photographic image
Description:An educational chart created by May T. Watts for The Morton Arboretum, depicting 16 types of winter buds on twigs. The chart appears to be tacked to a display board in a classroom.

Illustrations and text, from left to right, top to bottom:
  • white ash
  • black ash
  • blue ash
  • red ash
  • sugar maple
  • Norway maple
  • silver maple
  • box-elder
  • horse-chestnut
  • ohio buckeye
  • flowering dogwood
  • catalpa
  • ironwood
  • gray birch
  • European white birch
  • European alder




 
Extent: 1 slide

Fraxinus quadrangulata (Blue Ash), bark, trunk

Fraxinus quadrangulata (Blue Ash), bark, trunk (3.56204)

Date: October 11 2002
Creator: Hedborn Jr., Edward A.
Type: Photographic image
Description:Fraxinus quadrangulata (Blue Ash), bark, trunk

Fraxinus quadrangulata (Blue Ash), bark, trunk

Fraxinus quadrangulata (Blue Ash), bark, trunk (3.56205)

Date: October 2002
Creator: Hedborn Jr., Edward A.
Type: Photographic image
Description:Fraxinus quadrangulata (Blue Ash), bark, trunk

Fraxinus quadrangulata (Blue Ash), bark, trunk

Fraxinus quadrangulata (Blue Ash), bark, trunk (3.56206)

Date: November 24 2002
Creator: Hedborn Jr., Edward A.
Type: Photographic image
Description:Fraxinus quadrangulata (Blue Ash), bark, trunk

Fraxinus quadrangulata (Blue Ash), bark, twig

Fraxinus quadrangulata (Blue Ash), bark, twig (3.56207)

Date: May 9 2015
Creator: Hedborn Jr., Edward A.
Type: Photographic image
Description:Fraxinus quadrangulata (Blue Ash), bark, twig

Fraxinus quadrangulata (Blue Ash), bark, twig

Fraxinus quadrangulata (Blue Ash), bark, twig (3.56208)

Date: May 9 2015
Creator: Brown, Deborah J.G.
Type: Photographic image
Description:Fraxinus quadrangulata (Blue Ash), bark, twig

Fraxinus quadrangulata (Blue Ash), bark, twig

Fraxinus quadrangulata (Blue Ash), bark, twig (3.56209)

Date: November 24 2002
Creator: Hedborn Jr., Edward A.
Type: Photographic image
Description:Fraxinus quadrangulata (Blue Ash), bark, twig

Fraxinus quadrangulata (Blue Ash), fruit, mature

Fraxinus quadrangulata (Blue Ash), fruit, mature (3.56210)

Date: November 7 2009
Creator: Hedborn Jr., Edward A.
Type: Photographic image
Description:Fraxinus quadrangulata (Blue Ash), fruit, mature

Fraxinus quadrangulata (Blue Ash), habit, spring

Fraxinus quadrangulata (Blue Ash), habit, spring (3.56211)

Date: May 9 2015
Creator: Hedborn Jr., Edward A.
Type: Photographic image
Description:Fraxinus quadrangulata (Blue Ash), habit, spring

Fraxinus quadrangulata (Blue Ash), leaf, lower surface

Fraxinus quadrangulata (Blue Ash), leaf, lower surface (3.56212)

Date: May 9 2015
Creator: Hedborn Jr., Edward A.
Type: Photographic image
Description:Fraxinus quadrangulata (Blue Ash), leaf, lower surface

Fraxinus quadrangulata (Blue Ash), leaf, spring

Fraxinus quadrangulata (Blue Ash), leaf, spring (3.56213)

Date: May 9 2015
Creator: Brown, Deborah J.G.
Type: Photographic image
Description:Fraxinus quadrangulata (Blue Ash), leaf, spring

Fraxinus quadrangulata (Blue Ash), leaf, spring

Fraxinus quadrangulata (Blue Ash), leaf, spring (3.56214)

Date: May 9 2015
Creator: Brown, Deborah J.G.
Type: Photographic image
Description:Fraxinus quadrangulata (Blue Ash), leaf, spring

Fraxinus quadrangulata (Blue Ash), twig, young

Fraxinus quadrangulata (Blue Ash), twig, young (3.56215)

Date: May 9 2015
Creator: Brown, Deborah J.G.
Type: Photographic image
Description:Fraxinus quadrangulata (Blue Ash), twig, young

1997/06/17: Jeffrey R. Short Jr. to Dr. Christopher Dunn (3.57412)

Date: June 17 1997
Creator: Short Jr., Jeffrey R.
Type: Document
Description:Letter from Jeffrey R. Short, Jr. to Dr. Christopher Dunn providing his thoughts on the success or failure of various tree species received from the Morton Arboretum. Included with the letter are two completed Members' Cooperative Research Program evaluation forms from Jeffrey Short listing when the trees were purchased from the Arboretum and their current condition. Dr. George Ware is cc'd in the letter.
Extent: 3 sheets

Fall Color Report, Highlights, October 13-19, 2017

Fall Color Report, Highlights, October 13-19, 2017 (3.63012)

Date: October 2017
Creator: The Morton Arboretum
Type: Video
Description:Reported fall color at The Morton Arboretum for October 13-19, 2017

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