THE FLORA OF SCOTT AND MUSCATINE COl 255 



Urtica, Tourn. 



726. U. gracilis, Ait. Nettle. 

 Moist waste places ; infrequent. 



Laportea, Gaudichaud. 



727. L. Canadensis, Gaudichaud. Wood Nettle. 

 Rich woods ; infrequent. 



Pilea, Lindl. 



728. P. pumila, Gray. Richweed. Clearweed. 

 Moist shady woods ; frequent. 



Boehmeria, Jacq. 



729. B. cylindrica, Willd. False Nettle. 



Moist rich soil; rare. Wild Cat Den; Noels. 

 Parietaria, Tourn. 



730. P. Pennsylvania, Muhl. 

 Moist shady places ; common. 



PLATANACE^E. 

 Platanus, L. 



731. P. occidentalis, L. Sycamore. Buttonwood. 

 River banks ; common. 



JUGLANDACE^. 



Juglans, L 



732. J. cinerea, L. Butternut. White Walnut. 

 Woods ; frequent. 



733. J. nigra, L. Black Walnut. 

 Woods ; rather common. 



Carya, Nutt. Hickory. 



734. C olivceformis , Nutt. Pecan. 



Along rivers ; rare within our limits. Islands of the Missis- 

 sippi River. 



735. C. alba, Nutt. Shell-bark or Shag-bark H. 

 Common. 



736. C. sulcata, Nutt. Big Shell-bark. King Nut. 

 Infrequent in our limits. Along Wapsipinicon River, on 



islands of Mississippi, along Cedar River. 



737. C. tomentosa, Nutt. Mocker Nut. White-heart H. 

 The most common hickory. 



