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Scanning Electron Microscope (SEM) research, pollen grains of (L) Acer pseudoplatanus and (R) Rhus typhina Crowley Jr., Webster R.
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Web Crowley and woman measuring large tree
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Scanning Electron Microscope (SEM) research, pollen grains of (L) Acer saccharum and (R) Rhus glabraCrowley Jr., Webster R.
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Scanning Electron Microscope (SEM) research, male flowers of (L) Acer pennsylvanicum and (R) Rhus aromaticaCrowley Jr., Webster R.
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Webster Crowley's Arboretum residence at Arbordale, moved from east side
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Web Crowley, portrait
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Magnolia acuminata (cucumbertree), flowers and leaves detailSeptember 1964
Crowley Jr., Webster R.
Article
Planting a Small Tree (Up to one inch in diameter)September 21 – December 20 1965
Crowley Jr., Webster R.
Article
An Imported Problem: Dutch Elm Disease, 1918 to 1966March 21 – June 20 1966
Crowley Jr., Webster R.
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Alnus glutinosa (L.) Gaertn. (European black alder), catkins
February 1967
Crowley Jr., Webster R.
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Alnus glutinosa (L.) Gaertn. (European black alder), female flowersFebruary 1967
Crowley Jr., Webster R.
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Alnus glutinosa (L.) Gaertn. (European black alder), catkins and fruits
February 1967
Crowley Jr., Webster R.