78 



IOWA ACADEMY OF SCIENCES. 



ROSACEA. 



Pninus americana. Marshall. 



P. pumila, L. 



P. penngylvanicn. L. 



P Virginia na, L. 



P. serotina. L. 



Spircea salici folia. L. 



S. tomentosa, L. 



Ruhus triflorus, Richardson. 



B. strigosus, Michx. 



R. occidentalis, L. 



R. riJJnffux. Ait. 



R.nuKulnish. L. 



Fotnitilht fnitirnm,!^. 



Rosahlanda, Ait. 



R. rubininosa. L. 



Pynis coronaria, L. 



Pyrus arhutifolia, L. 



Crataegus coecinea, L. ? 



Crataegus sp. 



Amelanchier canadensis. Torr. & Gray. June-berry 



Wild Plum. 



Sand Cherry. 



Wild Red Cherry. 



Choke Cherry. 



Wild Black Cherry. 



Common Meadow Sweet. 



Hardhack. 



Dwarf Raspberry. 



Wild Red Raspberry. 



Black Raspberry. 



High Blackberry. 



Dewberry. 



Shrubby Cinque-foil. 



Rose. 



Sweetbrier. In woods naturalized. 



Wild Crab. The species as recognized in 



Gray's Manual. 

 Choke Berry. 

 White Thorn. 



Rihes cynoshati. L. 

 R. gracile, Mich.x. 



Maxim. 

 R. aurcum. Pursh. 



SAXIFRAGACE^. 



Gooseberry. 

 Missouri Gooseberry. 



var. subglandidosum, 



49. Hamamelis virgiyiiana, L. 



Red Currant. 



Missouri Currant. Frequent escape. 



HAMAMELID^. 



Witch Hazel. 



CORNACE^:. 



Cnrnus canadensis, L. 

 C. circinata, L'Her. 

 C. stolonifera, Michx. 

 C. paniculata, L'Her. 

 C. aUcrnifolia, L. 



Dwarf Cornel. 

 Round-leaved Dogwood. 

 Red-osier. 

 Panicled Cornel. 

 Alternate-leaved Dogwood. 



CAPRIFOLIACE.^.. 



Sambucus canadensis, L. 



S. racemosa, L. 



Vibur7ium opulus, L. 



V. lentago, L. 



Linncea borealis, Gronov. 



Symphoricarpus occideidalis. Hook. 



Lonicera sullivantii. Gray. 



L. glauca, Hill. 



DwrviUa triflda, Moench. 



Common Elder. 

 Red-berried Elder. 

 Cranberry-tree. 

 Black Haw. 

 Twin-flower. 

 Wolfberry. 



Sullivdnt's Honeysuckle. 

 Glaucus Honeysuckle. 

 Bush Honeysuckle. 



RUBIACE^. 

 CcphaJanthus occidentalis, L. Button-bush. 



ericacea;. 



Vaccinium pennsylvanicum, Lam. 

 V. oxycoccus, L. 



Arctostaphylos %iva-ursi, Sprang. 

 Epi{icea repens, L. 

 Gaidtheria procumbens, L. 

 Cassandra caltcidata, Don. 



Dwarf Blueberry. 

 Small Cranberry. 

 Bearberry. 

 Trailing Arbutus. 

 Creeping Wintergreeii 

 Leather Leaf. 



