Browsing by Subject/Keyword: collection:
Paper-barked maple (Acer griseum) leaves (3.36288)
Date: October 1 2014Creator: The Morton Arboretum
Type: Photographic image
Description:Closeup view of bright red paper-barked maple (Acer griseum) leaves in fall, against a blue sky
Leaf Anatomy Illustration (3.83117)
Date: January 28 2020Creator: Bradley, Pat
Type: Drawing
Description:An illustration of a cross-section of a typical leaf with major structures labeled.
Leaf Arrangement Illustration (3.83118)
Date: January 28 2020Creator: Bradley, Pat
Type: Drawing
Description:An illustration showing the three types of leaf arrangements: opposite, alternate, and whorled.
Extent: 1 page
Transpiration Illustration (3.83120)
Date: January 28 2020Creator: Bradley, Pat
Type: Drawing
Description:A basic illustration of tree transpiration.
Extent: 1 page
Quercus oglethorpensis (Oglethorpe's oak), foliage (3.83593)
Date: July 28 2015Creator: Lobdell, Matt
Type: Photographic image
Description:A photograph of the foliage of Quercus oglethorpensis (Oglethorpe oak) taken during plant exploration work in Bienville National Forest, Central Mississippi, in support of the APGA/USFS Tree Gene Conservation Partnership.
Quercus phellos (willow oak), foliage (3.83597)
Date: July 28 2015Creator: Lobdell, Matt
Type: Photographic image
Description:A photo of the foliage of Quercus phellos (willow oak) taken during plant exploration work (targeting Quercus oglethorpensis) in Bienville National Forest, Central Mississippi, in support of the APGA/USFS Tree Gene Conservation Partnership.
Quercus oglethorpensis (Oglethorpe oak), foliage (3.83599)
Date: July 28 2015Creator: Lobdell, Matt
Type: Photographic image
Description:A photo of the foliage of Quercus oglethorpensis (Oglethorpe oak) taken during plant exploration work in Bienville National Forest, Central Mississippi, in support of the APGA/USFS Tree Gene Conservation Partnership.
Quercus oglethorpensis (Oglethorpe oak), foliage (3.83602)
Date: July 29 2015Creator: Lobdell, Matt
Type: Photographic image
Description:A photo of the foliage of Quercus oglethorpensis (Oglethorpe oak) taken during plant exploration work in Bienville National Forest, Central Mississippi in support of the APGA/USFS Tree Gene Conservation Partnership.
Quercus oglethorpensis (Oglethorpe oak), foliage (3.83605)
Date: August 1 2015Creator: Lobdell, Matt
Type: Photographic image
Description:A photo of the foliage of Quercus oglethorpensis (Oglethorpe oak) taken during plant exploration work in Sumter National Forest, Western South Carolina, in support of the APGA/USFS Tree Gene Conservation Partnership. Foliage of this tree exhibited a greater degree of lobing than typical. Suspected potential hybrid or introgression with Quercus lyrata.
Quercus laevis Walter (turkey oak), foliage (3.83612)
Date: October 26 2015Creator: Lobdell, Matt
Type: Photographic image
Description:Foliage of Quercus laevis Walter (turkey oak) as photographed on a seed collecting trip in Alabama in 2015.
Quercus arkansana Sarg. (Arkansas oak), foliage (3.83614)
Date: October 26 2015Creator: Lobdell, Matt
Type: Photographic image
Description:Foliage of Quercus arkansana Sarg. (Arkansas oak) as observed on a seed collecting trip in Alabama in 2015. As visible in this photo, the leaves are considerably coriaceous, perhaps indicating similarity to the historically recognized "Quercus caput-rivuli" of the Florida panhandle.
Symptoms of ash anthracnose (3.83623)
Date: May 18 2005Type: Photographic image
Description:Ash leaf showing dark blotches due to infection by ash anthracnose.
Acer macrophyllum Pursh (big-leaved maple), foliage (3.83838)
Date: September 4 2015Creator: Lobdell, Matt
Type: Photographic image
Description:Leaves of Acer macrophyllum (bigleaf maple) in Olympic National Forest, Washington, USA
Pinus albicaulis Engelm. (whitebark pine), foliage (3.83846)
Date: September 7 2015Creator: Lobdell, Matt
Type: Photographic image
Description:Foliage of Pinus albicaulis (whitebark pine). Located on Freezeout ridge, Okanogan National Forest, Washington, USA. Photo taken during a collaborative seed collecting expedition with the US Forest Service and several arboreta located in the UK.
Quercus garryana Douglas ex Hook. (Oregon oak), foliage (3.83851)
Date: September 9 2015Creator: Lobdell, Matt
Type: Photographic image
Description:Leaves of Querus garryana (Oregon white oak) as observed during a collaborative seed collecting expedition between the US Forest service and several arboreta in the UK. From one of the northernmost populations, located within Washington state.
Quercus garryana Douglas ex Hook. (Oregon oak), fruit (3.83852)
Date: September 9 2015Creator: Lobdell, Matt
Type: Photographic image
Description:Fruit of Querus garryana (Oregon white oak) as observed during a collaborative seed collecting expedition between the US Forest service and several arboreta in the UK. From one of the northernmost populations, located within Washington state.
Gary Knox examining fruit and twig of Magnolia pyramidata (3.83943)
Date: August 1 2016Creator: Lobdell, Matt
Type: Photographic image
Description:Gary Knox examining fruit and twig of Magnolia pyramidata in the Florida Panhandle during an American Public Gardens Association/US Forest Service funded plant exploration and seed collecting trip. Andrew Bunting is in the background with a pole pruner.
Magnolia pyramidata W. Bartram (pyramidal magnolia), sample, foliage and fruit (3.84308)
Date: August 5 2016Creator: Lobdell, Matt
Type: Photographic image
Description:Andrew Bunting with a cut twig of Magnolia pyramidata exhibiting fruit and mature foliage. Photo taken during an American Public Gardens Association/US Forest Service funded plant exploration and seed collecting trip.
Magnolia pyramidata W. Bartram (pyramidal magnolia), fruit and foliage (3.84311)
Date: August 8 2016Creator: Lobdell, Matt
Type: Photographic image
Description:Immature fruit of Magnolia pyramidata as observed during an American Public Gardens Association/US Forest Service funded plant exploration and seed collecting trip.
Magnolia pyramidata W. Bartram (pyramidal magnolia), foliage (3.84316)
Date: August 1 2016Creator: Lobdell, Matt
Type: Photographic image
Description:Leaves of Magnolia pyramidata observed from beneath. Torreya State Park. Taken during an American Public Gardens Association/US Forest Service funded plant exploration and seed collecting trip.
Magnolia pyramidata W. Bartram (pyramidal magnolia), foliage (3.84325)
Date: August 2 2016Creator: Lobdell, Matt
Type: Photographic image
Description:Terminal branch of Magnolia pyramidata observed in Torreya State Park. Photo taken during an American Public Gardens Association/US Forest Service funded plant exploration and seed collecting trip.
Leptoglossus species on Magnolia pyramidata leaf (3.84326)
Date: August 2 2016Creator: Lobdell, Matt
Type: Photographic image
Description:Leptoglossus sp., a pest of Magnolia, observed on a Magnolia pyramidata leaf in Torreya State Park, Florida. Photo taken during an American Public Gardens Association/US Forest Service funded plant exploration and seed collecting trip.
Richard Cobb with Magnolia pyramidata sample (3.84332)
Date: August 5 2016Creator: Lobdell, Matt
Type: Photographic image
Description:Richard Cobb, a local expert in the Alabama Flora, holds a fruiting branch of Magnolia pyramidata in the Talladega National Forest - Oakmulgee District. The dog's name is Sassafras.
Castanea pumila (L.) Mill. (chinkapin), fruit and foliage (3.84333)
Date: August 6 2016Creator: Lobdell, Matt
Type: Photographic image
Description:Fruiting branch of Castanea pumila observed in the Talladega National Forest - Oakmulgee District, Alabama, US.
Magnolia macrophylla Michx. (big-leaved magnolia), foliage (3.84334)
Date: August 6 2016Creator: Lobdell, Matt
Type: Photographic image
Description:Foliage of Magnolia macrophylla as observed in-situ at the Oakmulgee District - Talladega National Forest, Alabama, USA.
Magnolia pyramidata W. Bartram (pyramidal magnolia), foliage (3.84336)
Date: August 8 2016Creator: Lobdell, Matt
Type: Photographic image
Description:Foliage of Magnolia pyramidata in a thicket off US 96, Jasper County, Texas, US (the "Pineywoods" area). Photo taken during an American Public Gardens Association/US Forest Service funded plant exploration and seed collecting trip.
Magnolia pyramidata W. Bartram (pyramidal magnolia), foliage (3.84341)
Date: August 8 2016Creator: Lobdell, Matt
Type: Photographic image
Description:Foliage of Magnolia pyramidata observed on seedlings or root suckers, East Texas. Photo taken during an American Public Gardens Association/US Forest Service funded plant exploration and seed collecting trip.
Magnolia pyramidata W. Bartram (pyramidal magnolia), fruit (3.84342)
Date: August 8 2016Creator: Lobdell, Matt
Type: Photographic image
Description:Andrew Bunting holding a sample of Magnolia pyramidata with near-mature fruit. East Texas. Photo taken during an American Public Gardens Association/US Forest Service funded plant exploration and seed collecting trip.
Bipinnately Compound Leaf Illustration (3.85228)
Date: April 10 2020Creator: Bradley, Pat
Type: Drawing
Description:An illustration of a bipinnately compound leaf.
Extent: 1 page
Tilia dasystyla subsp. caucasica (V.Engl.) Pigott (Caucasus linden), foliage (3.85248)
Date: August 26 2016Creator: Lobdell, Matt
Type: Photographic image
Description:Lower surface of foliage of Tilia dasystyla subsp. caucasica as photographed during the 2016 PCC Expedition to the Republic of Georgia.
Tilia dasystyla subsp. caucasica (V.Engl.) Pigott (Caucasus linden), foliage (3.85249)
Date: August 26 2016Creator: Lobdell, Matt
Type: Photographic image
Description:Upper surface of foliage of Tilia dasystyla subsp. caucasica as photographed during the 2016 PCC Expedition to the Republic of Georgia.
Acer ibericum M.Bieb. ex Willd. (Iberian maple), foliage (3.85250)
Date: August 28 2016Creator: Lobdell, Matt
Type: Photographic image
Description:Lower surface of a leaf of Acer ibericum collected from an open, mixed savannah. Georgia, Kvemo Kartli, Trialeti. 100m E of dead end of Samshvilde Complex Road. between Chivchara and Khrami Rivers. 1.3 air km SE of Samshvilde. 41.50654N, 044.50268E, 795 m.
Quercus macranthera Fisch. & C.A.Mey. ex Hohen. (Caucasian oak), foliage (3.85253)
Date: August 28 2016Creator: Lobdell, Matt
Type: Photographic image
Description:Leaves of Quercus macranthera as observed during the 2016 PCC Expedition to the Republic of Georgia. Kvemo Kartli, Georgia. North side of Tetriskaro-Tsalka Rd. 90 air m N of bank of Getistskali River and ca. 4 air km NW of Tetri Tskaro. 41.57054N, 044.44613E, 1347 m.
Zelkova carpinifolia (Pall.) K. Koch (Caucasus-elm), foliage (3.85268)
Date: September 2 2016Creator: Lobdell, Matt
Type: Photographic image
Description:Foliage of Zelkova carpinifolia as observed near Vartsikhe during the 2016 PCC Expedition to the Republic of Georgia.
Magnolia orbicularis, foliage (3.85289)
Date: December 1 2016Creator: Lobdell, Matt
Type: Photographic image
Description:Foliage and immature fruit of Magnolia orbicularis, growing in cultivation in Cuba
Acer velutinum Boiss (velvet maple), foliage (3.85306)
Date: September 19 2017Creator: Lobdell, Matt
Type: Photographic image
Description:Foliage of Acer velutinum as observed near Lerik, Lankaran, Azerbaijan.