IOWA ACADEMY OF SCIENCES. 201 



Saxifragace^. 

 Rihes gracilis. Wild Gooseberry. 



Common in rich soil in open ground and along fenc& 

 rows and hedges. 



CORNACE^. 



Corn lis sericea. 



Common along streams and in wet places. 

 Cornus altemifoHa L. f. Alternate-leaved Cornel. 



Quite common on hillsides. 

 Cornus panicuJata L'Her. Panicled Cornel. 



Common everywhere in thickets. 



CAPRIFOLIACEiE. 



Sambrucus Canadensis Linn. Elderberry, 

 Very common on low, rich bottoms Difficult to kill 

 on cultivated lands. 

 Vihirrnnm leniago. Black Haw. 



Rare. 

 Sjimphoricarpos vulgaris Michx. 

 Very common along roadsides and open ground where 

 the hazel has been cleared. This shrub has become 

 quite a nuisance in timber pastures and along fences^ 

 and hedge rows. 

 Lonicera glanca. Ht)neysuckle. 

 Frequent in woods on hillsides. 



RUBIACE^. 



Cephalanthus occidentalis Linn. Button-Bush. 

 Not frequent; found only in ponds and wet places. 



Oleaceje. 



Fraxinus americana Linn. White Ash. 



Quite common on river bottoms and along" streams. 



Urticace^. 



Ulmus puira Michx. Red Elm. Slippery Elm. 



Common. Rich upland and bottoms. 

 JJlmus americana Linn. 



Very common. Everywhere in damp woods. 



