SHRUBS OF THE McGREGOR DISTRICT 
h. H. PAMMEL 
The writer, has included shrubs found as far north as La Crosse, 
Wisconsin, where several tamarack swamps occur with their 
peculiar shrubs ; also shrubs of Allamakee and Winneshiek 
counties where Doctor Shimek has found a number of most inter- 
esting shrubs. 
Yew {Taxus canadensis) , not uncommon, Yellow river region, 
evergreen. 
Common juniper (Juniperus communis E.), limestone rocks, 
evergreen. 
Green Brier {Smilax rotundifolia) , spiny, green stemmed climb- 
ing shrub. 
Moonseed (Menispermum" canadense E.), common climbing 
shrub with black fruit. 
Common barberry {Berheris vulgaris E.)? shrub with three 
spines, naturalized. 
Hudsonia {Hudsonia tomentosa Nutt.), heathlike shrub, sand 
dunes, Muscoda, Wisconsin river. 
St. John’s wort {Hypericum prolificum E.)- 
St. John’s wort {Hypericum Kalmianum E.)* 
Mountain holly {N emopanthes fascicularis Raf.), damp woods, 
near Ea Crosse, rare. 
Bittersweet {Celastrus scandens E.), common in woods, climb- 
ing, pod orange color, seeds with scarlet membrane. 
Wahoo {Bvonymus atropurpureus Jacq.), erect shrub, seeds 
covered with red membrane. 
Buckthorn {Rhamnus alnifolia E’Her), cold woods with bal- 
sam fir, Yellow river. 
Common buckthorn {Rhamnus cathartica E.), a naturalized 
thorny branched shrub, rare. 
Buckthorn (Rhamus lanceolata Pursh), at Dubuque and south- 
ern Clayton county, shrub not thorny, berry blackish. 
New Jersey tea {Ceanothus americanus E.)? low, white flower- 
ing shrub, border of woods, common. 
New Jersey tea {Ceanothus ovatus Desf.), sandy soil. 
Wild grape {Vitis vulpina E.)j common. 
