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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), habitat April 1968
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), catkins and fruits
February 1967
Crowley Jr., Webster R.
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Magnolia acuminata (cucumbertree), flowers and leaves detailSeptember 1964
Crowley Jr., Webster R.
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Web Crowley and Chris Martner assisting visitor in wheelchair at Plant Clinic deskOctober 1993
Nachel, Jim
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Web Crowley and visitor in wheel chair talking at Plant Clinic deskOctober 1993
Nachel, Jim
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Web Crowley and visitor in wheel chair looking at display in Plant ClinicOctober 1993
Nachel, Jim
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Web Crowley talking to visitor in wheel chair at Plant Clinic counterOctober 1993
Nachel, Jim
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Web Crowley and woman reviewing papers at Plant Clinic deskAugust 1988
Irving, Gary
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Web Crowley reviewing photographs with visitor at Plant Clinic deskAugust 1988
Irving, Gary
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Bill Stickney points to plant specimen as Web Crowley holds it in Plant ClinicJanuary 1978