22 JOURNAL OF THE ARNOLD ARBORETUM (vol. iv. 



Planera aquatica (Walt.) J. F. Gmel. A typical species of the swamps, 

 often growing along the margins of lakes and bayous. 



MORACEAE 



Morus rubra L. Not rare in upland woods, especially along the es- 

 carpment, and sometimes also found in the lowlands. 



Madura pom if era (Raf.) Schneid. Found on dry gravelly ridges and 

 eroded hillsides and occasionally in openings along small streams. 



LORANTHACEAE 



Phorodendron flavescens (Pursh) Nutt. The Mistletoe is often common 



in the lowlands and on the flat uplands. It is found most frequently grow- 

 ing as a parasite on the Kims, but has also been noted on several of the 



lied Oaks, on Nyssa sylvatica, Gleditsia triacanihos and Platan us occiden- 



talis. 



ARISTOLOCHIACEAE 



Aristolochia tomentosa Sims. Growing in low sandy ground along a 

 small creek near McNab. 



POLYGONACEAE 



Brunnichia cirrhosa Banks. A common woody vine of the low woods, 

 where it attains a large size, climbing to the tops of the largest trees and 

 forming stems sometimes G to 8 centimeters in diameter. 



AN ONACEAE 



Asimina triloba (L.) Dunal. Growing as a shrub or small tree in rich 

 wooiis, especially along small creeks in the sand hills section. 



RANUNCULACEAE 



Clematis crispa L. This small species is sometimes found in low ground, 

 in thickets and on open banks. 



Clematis Simsii Sweet. Sometimes found in thickets and open ground 

 in the sand hills section. 



Clematis reticulata Walt. Apparently rare, this species has been col- 

 lected along sandy bogs near Columbus. 



MENISPERMACEAE 



Cocculus carolinus (L.) DC. Sometimes common in thickets and 

 barrens and on open banks. 



LAURACEAE 



Sassafras officinale Xees. & Eberm. A small tree of upland woods and 

 thickets. 



Benzoin aestirale (L.) Nees. Rich woods and margins of bogs in the 



sand hills section; occasionally also found in low woods in the river valley. 



SAXIFRAGACEAE 



Ilea virginica L. Confined to bogs and swamps where it sometimes takes 

 root on decaying stumps and logs. 



