192 JOURNAL OF THE ARNOLD ARBORETUM (vol. vi 



Q 



Q. cinerea and Q 



rubra. This is a most striking tree with large unlobed leaves, glossy 

 above and densely stellate pubescent beneath. Several trees. 



Quercus Bushii Sarg 

 velutina. Several trees. 



Q. marylandica and Q 



ULMACEAE. 



Ulmus americana L. Common. 



Ulmus alata Michx. Common. 



Ulmus fulva Michx. Several trees. 



Planera aquatica Gmel. A few trees near the river. 



Celtis occidentalis var. crassifolia A. Gray. Common. 



Celtis laevigata K. Koch. Very abundant. 



MORACEAE. 

 Morus rubra L. Common. 



MAGNOLIACEAE. 



Magnolia virginiana L. Common. This is the only Magnolia actually 



in the tract described, but the following additional Magnolias can be 



found in the vicinity: Magnolia grandiflora L., M. macrophylla Michx., 

 M. pyramidata Pursh. 



Liriodendron Tulipifera L. Common. 



LAURACEAE. 



Persea Borbonia Spreng. Rare. 



Sassafras officinale Nees and Eberm. Very common as a shrub, 

 occasionally a large tree. 



HAMAMELIDACEAE. 



Liquidambar styraciflua L. Very common. 



Hamamelis macrophylla Pursh. Very common as a shrub. A tree 

 over 30 feet high on the high bluffs of the river. 



P1ATANACEAE. 

 Platanus occidentalis L. Very abundant. 



ROSACEAE. 



Mains angustifolia Michx. A few trees. 

 Amelanchier canadensis Med. Rare. 



Crataegus. There are many species of Crataegus but very few of 

 them here are really trees. The following might be so considered: Cratac- 



ifol 



Beadle. 



C. tomentosa L., C. algens 



Prunus umbellata Ell. Very abundant. 



Prunus lanata Mack. & Bush. Common. 



Prunus Munsoniana Wight & Hedrick. A few trees. 



