MICHIGAN FLORA. 



975. Cyparissias, L. (***) 



Garden. 

 Spurge. 

 Door-yard S. Escaped from cultivation. 



976. Esula, L. 



Escaped from cultivation. 

 ACALYPHA 

 Three-seeded 977. Virffillica, L. 



Mercury. 



Open woods. Variable. Ionia (!); Detroit (!), etc. 



EMPETRACE^E. 



( Crowlerry Fam tly. ) 

 EMPETRUM 



Frequent. 

 Infrequent. 



Th. 



Common. 



Black crow- 978. nigrum, L. 



berry. 



U. P. 



Whitney Cat. 



TJRTICACEiE. 



{Nettle Family.) 



ULMUS 



slippery Elm. 979. fulva, Michx. ' (*) 



Red Elm. 



Th. 



White Elm. 



American 



Elm. 



Rock Elm. 



Hackberry. 

 Sugarberry. 

 Nettle-tree. 



Red Mul- 

 berry. 



Tall Wild 

 Nettle. 



Great Sting- 

 ing Nettle. 



Wood Nettle. 

 Cursed Net- 

 tle. 



Richweed. 



Rich soil. Wood reddish, tough and hard. The inner bark mucilaginous 

 and much used in medicinal preparations. Frequent. 



(***) Th. 



Low grounds. Wood tough, fine grained, valuable, used for wagon hubs, 

 etc. One of our finest ornamental trees. Common. 



980. Americana, L. 



9S1. racemosa, Thomas. 



Th. 



River banks. Wood similar to the last but more valuable; takes a fine 

 polish. A large, fine tree, frequently planted. Frequent. 



CELTIS 



982. occidentalis, L. 



0. &S. 



MORUS 



983. rubra, 



River banks. Sap wood, yellow, inner wood, grayish, coarse grained, soft 

 and of little value, used for fuel. A medium or large sized tree. 



Frequent. 



L. (***) 



0. &S. 



A small tree on river bottoms. W r ood valuable. Wayne Co. ; Ionia Co. (!); 

 Lansing (!). The largest specimen observed grows near Ionia, and meas- 

 ures fourteen inches in diameter two feet above the ground. Frequent 

 as far north as latitude 43°, where the abundant fruit ripens the last of 

 June. 



URTICA 



984 



gracilis, Ait. 



Moist ground. 



985. 



dioica, L. (***) 



Waste places. 

 LAPORTEA 



986. Canadensis, Gaud. ( 



Thick -woods along streams. 

 PILEA 



987. pumila, Gray. 



Low woods. 



A vicious weed. 



BCEHMERIA 



False Nettie. 988. cylindrica, Willd, 



Moist ground. 



Th. 



Common. 



Th. 



Occasional. 



c. &s. 



Common. 



0. & s. 



Common. 



c. &s. 



Common. 



