98 
Cheney and True—Flora of Madison and Vicinity . 
Boehmeria, Jacq. False nettle. 
511. B. cylindrical Willd. 
Very common in wet places. 
Parietaria, Tourn. Pellitory. 
512. P. Pennsylvania, Muhl. 
Growing on leaf mould in woods. Local. 
* 
PLATANACEiE. (PLANE-TREE FAMILY.) 
Platanus, L. Sycamore. Buttonwood. 
513. P. occidentalis, L. 
A single small tree on west, shore of Lake 
Kegonsa. 
JUGLANDACEiE. (WALNUT FAMILY.) 
Juglans, L. Walnut. 
514. **J. cinerea, L. Butternut. White walnut. 
In rich soil in open woods. 
515. *J. nigra, L. Black walnut. 
With J. cinerea. Less common. 
Carya, Nutt,. Hickory. 
516. C. alba, Nutt. Shell-bark or shag-bark hickory. 
Open woodland throughout the region. 
517. C. amara, Nutt. Bitternut or swamp hickory. 
Low lands about lakes. Not uncommon. 
CupuLiFERiE. (Oak Family.) 
Betula, Tourn. Birch. 
518. *B. papyrifera, Marshall. Paper or canoe birch. (B. 
papyracea, Ait.) 
North of University Hall, Madison. Cultivated. A 
small tree growing wild in woods south of ceme¬ 
tery. Growing wild at Hook Lake. 
519. *B. pumila, L. Low birch. 
Marshes about the lakes. Local. 
