24 NATURAL HISTORY AND TOPOGRAPHY OF GROTON, MASS. 



Shad-Bush. June Berry. Service Berry. Amelanchier Cana- 

 densis. River bank. April. 



Witch Hazel. Hamamelis Virginiana. Our grove. October. 



Rhododendron. Rhododendron maximum. Cultivated. May. 



White Ash. Fraxinus Americana. Native. Roadsides. May. 



Red Ash. Fraxinus Pennsylvanica. Native. Roadsides. May. 



Black Ash. Fraxinus nigra. Native. Roadsides. May. 



Catalpa. Indian Bean. Catalpa catalpa. Cultivated. Mr. Amory 

 A. Lawrence's field. June. 



Sassafras. Sassafras sassafras. Our grove. Native. May. 



White Elm. Ulmus Americana. Native. Main Street. March. 



Slippery Elm. Ulmus pubescens. Main Street. Dr. Samuel A. 

 Green's yard. Rare. March. 



English Elm. Ulmus campestris. Main Street. Mr. Frank L. 

 Blood's. Cultivated. March. 



Hackberry. Celtis occidentalis. Our woods. Native. May. 

 ' White Mulberry. Morris alba. Our orchard. Cultivated. May. 



Sycamore. Buttonwood. Platanus occidentalis. Chicopee Row. 

 Native. May. 



Black Walnut. Juglans nigra. Hollis Street. Native. May. 



Butternut. White Walnut. Juglans cinerea. Our orchard. 

 Native. May. 



Bitternut. Swamp Hickory. Hicoria minima. Rocky Hill. 

 Native. May. 



Shagbark. Shell Bark Hickory. Hicoria ovata. Native. Elm 

 Avenue, Chicopee Row and other roadsides. May. 



Pignut. Hicoria porcina. Rockwood's pasture. Native. May. 



White Birch. Gray Birch. Betula populifolia. Roadsides. Com- 

 mon. April. 



Paper Birch. White Birch. Canoe Birch. Betula papyrifera. 

 Roadsides. Not very common. April. 



Red Birch. River Birch. Betula nigra. Cultivated. Mr. L. 

 Brooks. March. 



Yellow Birch. Betula lutea. Our woods. Native. April. 



Sweet Birch. Black Birch. Betula lenta. Our woods. April. 



Alder. Alnus glutinosa. Common. Roadsides. March. 



Hop Hornbeam. Iron Wood. Ostrya Virginica. Dry banks. 

 April. 



Hornbeam Blue Beech. Carpinus Caroliniana. River bank. April. 



White Oak. Quercus alba. Roadsides. Native. May. 



