744 



Primulaceae 



Vaccinium 



Map 1587 

 Vaccinium vacillans Kalm ex Torrey 



50 



Map 1589 



Vaccinium macrocarpon Ai 



6. Vaccinium canadense Kalm. Canada Blueberry. Map 1588. This 

 species is distinguished by its dwarf size, densely pubescent branchlets, 

 and narrow leaves which are entire and densely pubescent beneath. Our 

 only authentic record for Indiana is that of a colony on the north slope 

 of a wooded headland along Bear Creek near Fountain, Fountain County. 

 The area where it is located is used as a summer resort and since the plant 

 is exposed it will doubtless soon disappear. Associated with this species at 

 this place was a form of it about 1 dm taller, with leaves all of a narrow 

 form, and with fruit usually oblong, black, and without a bloom. I find in 

 literature no reference to this form. 



Lab. to Man., southw. in the mts. to Va. and 111. 



7. Vaccinium macrocarpon Ait. (Oxycoccus macrocarpos (Ait.) Pursh.) 

 Cranberry. Map 1589. In boggy and marshy places, usually associated 

 with sphagnum. Formerly there were large areas of "cranberry marshes" 

 in Indiana but now the species has become rare. 



Newf. to Wis., southw. to N. J., W. Va., and Ark. 



8. Vaccinium Oxycoccos L. (Oxycoccus Oxycoccus (L.) MacM.) Map 

 1590. Found only in boggy places associated with sphagnum. It is exceed- 

 ingly rare and, no doubt, will soon become extinct except possibly in the 

 La Porte County station. 



Arctic regions, southw. to Pa., Ind., and Wis. 



237. PRIMULACEAE Vent. Primrose Family 



Corolla and calyx with erect or spreading segments. 



Plants stemless 6321. Androsace, p. 745. 



Plants with leafy stems. 



Plants aquatic; immersed leaves pectinate 6327. Hottonia, p. 745. 



Plants terrestrial or of marshes; leaves entire. 



Leaves opposite or in whorls (rarely a few of the lower ones alternate). 



Leaves 5-10 in a whorl at the top of the stem; stem erect, usually 8-18 cm long; 

 flowers white 6333. Trientalis, p. 750. 



