Photographic image
Tilia americana var. americana (American Basswood), bark, mature1988
Coulter, Ronald M.
Photographic image
Quercus rubra (northern red oak), tree trunk and barkNovember 1968
Coulter, Ronald M.
Photographic image
Quercus rubra (northern red oak), tree trunk and barkNovember 1968
Coulter, Ronald M.
Document
The Morton Arboretum Map & General Information, 1972 [guide map and collections grid printed on back]June 1972
Coulter, Ronald M.
Map
Walking Trails of The Morton Arboretum [base map with trails and landmarks identified]1977
Coulter, Ronald M.
Photographic image
Walking Trails of The Morton Arboretum [negative of Visitor Center area]1976
Coulter, Ronald M.
Map
Woody Plant Collections, The Morton Arboretum [by Ronald M. Coulter and Nancy Hart Stieber]1982
Coulter, Ronald M.
Photographic image
Callitropsis nootkatensis (Alaska-cedar), cone, matureSeptember 12 1972
Coulter, Ronald M.
Photographic image
Callitropsis nootkatensis (Alaska-cedar), habit, summerJuly 7 1972
Coulter, Ronald M.
Document
Woody Plant Collections, The Morton Arboretum, Map & Guidelines for Locating Plants [1990]1990
The Morton Arboretum
Photographic image
Juniperus communis var. depressa (Ground Juniper), habitatJuly 20 1976
Coulter, Ronald M.
Article
The Characteristics Used in the "New Systematics" Approach to Classifying the Gramineae 1970
Coulter, Ronald M.
Photographic image
Woody plant collections, The Morton Arboretum, by Ronald M. Coulter and Nancy Hart Stieber [negatives for text portion of leaflet]1994
Coulter, Ronald M.
Map
The Morton Arboretum [guide map and collections grid, including notes on flooding]1982
Coulter, Ronald M.
Map
Morton Arboretum, DuPage County, Illinois (topographic survey)circa 1970
Chicago Aerial Survey Co.
Photographic image
Abies amabilis (Dougl.) Forbes (Pacific silver fir), forest floor July 1976
Coulter, Ronald M.
Photographic image
Abies lasiocarpa (Hook.) Nutt. (subalpine fir) [left] and Abies amabilis (Dougl.) Forbes (Pacific silver fir) [right], branches, needlesJuly 1977
Coulter, Ronald M.