60 BOTANY OF MICHIGAN 



from Bay County to St. Ignace. Very abundant in Arenac and Iosco 

 counties on dry open ground and growing with the following variety. 



Vaccinium pennsylvanicum nigrum Wood. Low black blueberry. 

 Common from Bay County to St. Ignace. Often very abundant and 

 growing with the preceding. These two shrubs produce a great abun- 

 dance of delicious berries nearly every season, both known in the market 

 as blueberries. 



Vaccinium canadense Kalm. Sour-top. In dry or swampy open 

 ground from Ba} r County to St. Ignace, Mackinac County. Frequent. 



Vaccinium corymbosum L. Swamp blueberry. In swampy open or 

 shaded ground from Bay County to St. Ignace, Mackinac County. 

 Frequent. 



Vaccinium oxycoccos L. Small cranberry. In sphagnum swamps from 

 Ba}^ County to St. Ignace, Mackinac County. Frequent. 



Vaccinium macrocarpon Ait. Large cranberry. American cranberry. 

 Open bogs and swampy places from Bay County to St. Ignace. Fre- 

 quent. 



PRIMULACEAE. Primrose Family 



Primula, farinosa L. Bird's eye primrose. Damp rich shaded ground 

 on Thunder Bay Island in Alpena County. Apparently infrequent. 



Primula farinosa americana Farr. Yellow-leaved primrose. In damp 

 sand near Lake Huron shore above Alpena. Apparently infrequent. 

 Perhaps overlooked. 



Primula mistassinica Michx. Dwarf Canadian primrose. Damp open 

 ground east side of Mackinac Island. Plentiful. Probably frequent 

 throughout, but overlooked. 



Lysimachia terrestris (L.) BSP. Bulb-bearing loosestrife. Low wet 

 ground from Bay County to St. Ignace, Mackinac County. Plentiful. 



Lysimachia thyrsi flora L. Tufted loosestrife. In swampy open places 

 throughout. Often in shallow water. Plentiful. 



Steironema ciliatum (L.) Raf. Fringed loosestrife. Low usually 

 shaded ground from Bay County to St. Ignace, Mackinac County. 

 Plentiful. 



Steironema quadriflorum (Sims) Hitchc. Prairie moneywort. Xoticed 

 only in Bay County in marshy or prairie-like ground. Plentiful. 



Trientalis americana (Pers.) Pursh. Star flower. In rich shaded 

 ground throughout. Common. 



OLEACEAE. Olive Family 



Fraxinus americana L. White ash. In rich damp ground with other 

 trees from Bay County to St. Ignace, Mackinac County. Frequent, but 

 never plentiful. 



Fraxinus pennsylvanica Marsh. Red ash. Often standing out in the 



