TUSCOLA COUNTY Is; 



URTICACEAE. Nettle Family 



Uhnus fulva Michx. Slippery elm. Red elm. ''Common aloi 

 streams." C. A. Davis. 



Uhnus americana L. American elm. White elm. Very common 

 throughout in rich ground with other trees. 



Uhnus racemosa Thomas. Rock elm. Cork elm. In rich ground wil h 

 other trees near Murphy's Lake. Noticed also on the "islands' 3 by 

 Prof. C. A. Davis. 



Cannabis sativa L. Hemp. Occasional as an escape in cities and 

 villages. 



Humulus lupulus L. Common hop. Hops. Inclined to escape and 

 persist along fences. 



Madura pomifera (Raf.) Schneider. Osage orange. Planted for 

 hedges and inclined to persist, but not spreading. Apparently not a 

 success for hedge purposes in this locality. 



Urtica gracilis Ait. Slender nettle. Common in rich woods, open 

 damp places, and often inclined to be a weed. 



Laportea canadensis (L.) Gaud. Wood nettle. In rich wood-, 

 especially near Murphy's Lake. Probably frequent throughout. 



Pilea pumila (L.) Gray. Richweed. Clearweed. Common in dam]) 

 rich woods and thickets. 



Boehmeria cylindrica (L.) Sw. False nettle. Frequent in moist shaded 

 or open ground, especially near the small lakes. 



SANTALACEAE. Sandalwood Family 



Comandra richardsiana Fernald. Richard's bastard toad-flax. Com- 

 mon throughout in dry poor ground. Formerly included in C. umbellate 

 (L.) Nutt. 



ARISTOLOCHIACEAE. Birthwort Family 



Asarum canadense L. Wild ginger. In rich woods near Murphy's 

 Lake. Probably appearing throughout. 



POLYGONACEAE. Buckwheat Family 



Rumex britannica L. Great water dock. Common in swamp- and 

 wet places, especially about the small lakes. 



Rumex crispus L. Yellow dock. Common as a weed along roads, In 

 hay fields and damp meadows. 



Rumex verticillatus L. Swamp dock. Occasional in very we1 places 

 and often in shallow water, especially along the low wet banks of small 

 streams. 



Rumex obtusifolius L. Bitter dock. Frequent and often common as 

 a weed along roads, in yards, cultivated fields, and open woods. 



