Acer saccharinum (silver maple), spring (3.37891)
Date: March 1979Creator: Kohout, Kitty
Type: Photographic image
Description:Acer saccharinum (silver maple), tree along the bank of a body of water with bright green foliage
Extent: 1 slide
Acer saccharinum (silver maple), fruit and leaves (3.37912)
Date: March 1979Creator: Kohout, Kitty
Type: Photographic image
Description:Acer saccharinum (silver maple), closeup of bright pale green samaras, typical winged fruit of maples, hanging from twig with leaves
Extent: 1 slide
Acer saccharinum (silver maple), female flowers, spring (3.37983)
Date: March 1966Creator: Kohout, John, Kohout, Kitty
Type: Photographic image
Description:Acer saccharinum (silver maple), closeup detail of reddish pistillate female flowers budding from twig in spring
Extent: 1 slide
1981/03/03: Jeff Dawson to George Ware (3.38659)
Date: March 3 1981Creator: Dawson, Jeffrey O.
Type: Document
Description:Letter from Jeff Dawson, Assistant Professor of Forestry at University of Illinois at Urbana-Champaign to George Ware discussing an outline of proposed research concerning the low soil oxygen tolerance (with mention of ethanol and flood tolerance) of maple and oak trees.
Enclosed with letter
An Ethanol Tree-Seedling Assay: A Potential Method to Screen Trees for Tolerance to Low Soil Oxygen Conditions Resulting from Soil Compaction and Paving. Review of current literature and proposal for two experiments to examine oxygen deficiency and ethanol tolerance in tree seedling roots. The results would be used in the creation of an tree survivability index which would be of use in flood prone areas or compacted urban and recreational sites.
Extent: 7 sheets, 1 envelope
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
Acer saccharinum (silver maple), female flowers (3.37907)
Date: April 1977Creator: Stickney, William S.
Type: Photographic image
Description:Acer saccharinum (silver maple), closeup detail of female flowers budding on single twig, set against a black backdrop
Extent: 1 slide
Acer saccharinum (silver maple), twig and buds, spring (3.37975)
Date: March 1966Type: Photographic image
Description:Acer saccharinum (silver maple), against a black backdrop, closeup detail of the tip of a single twig with reddish buds in early spring
Extent: 1 slide
Acer saccharinum (silver maple), branches hanging over river (3.37900)
Date: March 1977Type: Photographic image
Description:Acer saccharinum (silver maple), DuPage River seen through the branches of a silver maple tree in early spring, branches are mostly bare except for buds developing on twigs
Extent: 1 slide
Acer saccharinum (silver maple), seedling (3.37918)
Date: June 1969Creator: Kohout, Kitty
Type: Photographic image
Description:Acer saccharinum (silver maple), closeup of seedling in sand
Extent: 1 slide
Acer saccharinum (silver maple), winter, habit (3.37893)
Date: December 1981Creator: Kohout, John
Type: Photographic image
Description:Acer saccharinum (silver maple), full view of tall tree with completely bare branches in winter, tree is situated in the parkway of a residential area near the street with a house in the background
Extent: 1 slide
Acer saccharinum (silver maple), fallen fruit (3.37913)
Date: May 1985Creator: Kohout, Kitty
Type: Photographic image
Description:Acer saccharinum (silver maple), fallen yellowish green winged samara fruit clusters that have accumulated in the grass
Extent: 1 slide
Acer saccharinum (silver maple), female flowers, spring (3.37984)
Date: April 1977Creator: Stickney, William S.
Type: Photographic image
Description:Acer saccharinum (silver maple), closeup detail of reddish pistillate female flowers budding from twig in spring
Extent: 1 slide
Acer saccharinum (silver maple), female flowers and buds (3.37908)
Date: April 1977Creator: Stickney, William S.
Type: Photographic image
Description:Acer saccharinum (silver maple), closeup detail of female flowers budding on single twig, set against a green backdrop
Extent: 1 slide
Acer saccharinum (silver maple), twig and buds, spring (3.37976)
Date: April 1983Creator: Kohout, Kitty
Type: Photographic image
Description:Acer saccharinum (silver maple), closeup detail of the tip of a single twig with reddish buds in early spring
Extent: 1 slide
Acer saccharinum (silver maple), twig and bark (3.37902)
Date: May 1977Creator: Kohout, Kitty
Type: Photographic image
Description:Acer saccharinum (silver maple), split image, the top image shows a closeup of the tip of a twig with buds; the bottom image shows a closeup of pale silvery gray bark, presumably on a younger tree
Extent: 1 slide
Acer saccharinum (silver maple), young leaves, spring (3.37920)
Date: May 1961Creator: Scott, Marion
Type: Photographic image
Description: Acer saccharinum (silver maple), closeup detail of deeply-lobed and toothed young leaves with reddish color
Extent: 1 slide
1991/10/04: George Ware to Suzanne Malec (3.56304)
Date: October 4 1991Creator: Ware, George
Type: Document
Description:Facsimile of an abstract and research paper sent to Suzanne Malec of the Open Land Project. The paper, Trees for Restricted Spaces was written by George Ware and discusses the genetic, topographic, and edaphic factors to take into consideration when selecting urban trees.
Extent: 8 sheets
Acer saccharinum (silver maple), spring (3.37894)
Date: April 1983Creator: Kohout, Kitty
Type: Photographic image
Description:Acer saccharinum (silver maple), partial view of tree with bare branches in early spring with buds beginning to develop on twigs, tree is situated near a path with other trees in the background
Extent: 1 slide
Acer saccharinum (silver maple), seedling (3.37914)
Date: June 1969Creator: Kohout, Kitty
Type: Photographic image
Description:Acer saccharinum (silver maple), closeup detail of seedling in sand
Extent: 1 slide
Acer saccharinum (silver maple), female flowers and buds (3.37985)
Creator: Kohout, Kitty
Type: Photographic image
Description:Acer saccharinum (silver maple), closeup detail of reddish pistillate female flowers budding on a twig, set against a green backdrop
Extent: 1 slide
Acer saccharinum (silver maple), summer (3.37883)
Date: June 1971Creator: Kohout, Kitty
Type: Photographic image
Description:Acer saccharinum (silver maple), large tree with broad, irregular habit and dense green foliage in the summer
Extent: 1 slide
Acer saccharinum (silver maple), twig and flowers (3.37909)
Date: March 1981Type: Photographic image
Description:Acer saccharinum (silver maple), closeup detail of twig with flowers just emerging from buds set against blue backdrop
Extent: 1 slide
Acer saccharinum (silver maple), fruit and leaves (3.37980)
Date: May 1988Creator: Gutenstein, Hanns
Type: Photographic image
Description:Acer saccharinum (silver maple), closeup detail of green and reddish samara fruit clusters budding from twig with new leaves emerging
Extent: 1 slide
Winter Buds, #1 (3.19511)
Date: 1940 – 1950Creator: 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
Acer saccharinum (silver maple), twig and buds, spring (3.37903)
Date: March 1979Creator: Kohout, Kitty
Type: Photographic image
Description:Acer saccharinum (silver maple), closeup detail of the tip of a single twig with reddish buds in early spring
Extent: 1 slide
Acer saccharinum (silver maple), leaves (3.37921)
Type: Photographic image
Description:Acer saccharinum (silver maple), closeup detail of leafy branch, leaves are 5-lobed with large teeth and rich green color
Extent: 1 slide
Trees with Flowers Borne in Clusters (3.24608)
Date: 1944Creator: Watts, May Theilgaard
Type: Drawing
Description:Illustrations depicting four groups of staminate and pistillate flowers with associated outline of six trees, created to accompany "The Flowers Nobody Knows" article featured in Morton Arboretum Bulletin of Popular Information. Descriptive text identifies coloring, anatomy, and bloom time.
Header: Trees with Flowers Borne in Clusters
Illustrations are separated into four sections, from top to bottom:
Section 1: Pistillate and Staminate Flowers on Different Trees
(depicted from left to right)
- White ash -- Fraxinus americana
- Box-elder -- Acer negundo
(depicted from left to right)
- Sugar maple -- Acer saccharum
- Silver maple -- Acer saccharinum
- Sycamore -- Platanus occidentalis
- American elm -- Ulmus americana
Extent: 1 sheet
Acer saccharinum (silver maple), tree stump (3.37895)
Date: September 1973Creator: Stickney, William S.
Type: Photographic image
Description:Acer saccharinum (silver maple), tree stump with multiple stems sprouting from base of the tree, and branches covered with green foliage, located near Arboretum's Willow Collection
Extent: 1 slide
Acer saccharinum (silver maple), seedling (3.37915)
Date: June 1969Creator: Kohout, Kitty
Type: Photographic image
Description:Acer saccharinum (silver maple), closeup detail of seedling in sand
Extent: 1 slide
Acer saccharinum (silver maple), female flowers and buds, spring (3.37987)
Date: March 1979Creator: Kohout, Kitty
Type: Photographic image
Description:Acer saccharinum (silver maple), closeup detail of reddish pistillate female flowers budding from twig in spring
Extent: 1 slide
Our Native Maples (3.24611)
Date: 1944Creator: Watts, May Theilgaard
Type: Drawing
Description:Illustrations of four species of maple, created to accompany "The Maples of The Morton Arboretum" article featured in Morton Arboretum Bulletin of Popular Information. Drawings show tree shape, including top, twigs, branches, size, winged seeds, and leaves. Descriptive text gives details of tree structure (branching, bark, and trunk), habitat, seed ripening schedule, and leaf details including color and sinus structure. Red maple seeds illustration is a cut out piece glued in place.
Illustrations depicted from top to bottom, left to right:
- Sugar maple -- Acer saccharum
- tree - round top; dark smooth on young branches; right-angled branching; sap-sucker holes; stone-gray bark with thick plates loose along one edge; upland
- seeds - ripe in September-October
- leaf - smooth, thin, yellow in Fall
- Silver maple -- Acer saccharinum
- tree - broad top; smooth gray young branches; branches bend downward with tips turning upward; long loose scales on bark; trunk often divides near ground; lowland
- seeds - ripe in May
- leaf - silvery beneath; acute, deep sinuses
- Red maple -- Acer rubrum
- tree - pale gray upper branches; red twigs; dark gray bark; swamp, river-bottom, upland
- seeds - ripe in May-June
- leaf - silvery beneath, V-shaped sinuses, scarlet in Fall
- Box-elder -- Acer negundo
- tree - small tree; bushy spreading top, purplish twigs, bark with narrow shallow ridges; river bottoms
- seeds - ripe in summer; hangs on a winter
- leaf - prominent veins; 3 to 7 leaflets
Extent: 1 sheet
Acer saccharinum (silver maple), spring (3.37886)
Date: May 1977Creator: Kohout, Kitty
Type: Photographic image
Description:Acer saccharinum (silver maple), large tree with mostly bare branches showing flowers beginning to bud in early spring
Extent: 1 slide
Acer saccharinum (silver maple), male flowers (3.37910)
Date: April 1977Creator: Stickney, William S.
Type: Photographic image
Description:Acer saccharinum (silver maple), extreme closeup detail of staminate (male) flowers emerging from buds set against black backdrop
Extent: 1 slide
Acer saccharinum (silver maple), twigs and buds (3.37981)
Creator: Miller, M.
Type: Photographic image
Description:Acer saccharinum (silver maple), a partial view of some bare twigs with flowers and leaves just beginning to emerge from buds
Extent: 1 slide
Winter Twigs, page 2 (3.24631)
Date: 1943Creator: 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
- 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
Extent: 1 sheet
Acer saccharinum (silver maple), female flowers (3.37904)
Date: December 1972Creator: Reynolds, P. J.
Type: Photographic image
Description:Acer saccharinum (silver maple), closeup detail of early female flowers budding on single twig, set against a black backdrop
Extent: 1 slide