BIRDS IN RELATION TO AGRICULTURE 185 



Spice bush Benzoin cestivale. 



Wild gooseberry Ribes Cynoshati. 



Red currant Ribes vulgare. 



Asiatic currant Ribes fascicidatum. 



Flowering crab-apple Pyrtis floribunda. 



Choke cherry Pyrus melanocarpa. 



Mountain ash Pyrus americana. 



Juneberry Amekmchier canadensis. 



Asiatic service-tree Amelanchier asiatica. 



Cockspur thorn Cratcegus Crus-galli. 



Wild strawberry Fragaria americana. 



Wild blackberry Rubus allegheniensis. 



Dwarf raspberry Rubus triflorus. 



Wild blackberry Rvbus canadensis. 



Pasture rose Rosa humilis. 



Wild black cherry Prunus serotina. 



Beach plum Prunus marilima. 



Sand cherry •. Prunus pumila. 



Crowberry Empetrum nigrum. 



Fragrant sumac Rhus canadensis. 



Mountain holly Nemophanthus mucronala. 



Bittersweet Celastrus scandens. 



Buckthorn Rhamnus cathartica. 



Virginia creeper P seder a quinquefolia. 



Summer grape Vitis cestivalis. 



Frost grape Vitis vulpina. 



Leatherwood Dirca palustris. 



Wild pepper Daphne Mezereum. 



Oleaster Elceagnus angustifolia. 



Buffalo berry Shepherdia canadensis. 



Wild sarsaparilla Aralia nudicavlis. 



Asiatic sarsaparilla Acanthopanax sessiliflorum. 



Bunchberry Cornus canadensis. 



Flowering dogwood Cornus florida. 



Red osier Cornus stolonifera. 



Alternate-leaved dogwood Cornus alternifolia. 



Wintergreen Gaultheria procumbena. 



Bearberry Arctostaphylos Uva-ursi. 



Creeping snowberry Chiogenes hispidula. 



Black huckleberry Gaylussacia baccata. 



Early sweet blueberry Vacdnium pennsylvanicum. 



