226 Primulaceae 



In sphagnum bogs throughout the Rockies, 

 though not common; flowering during July. 



PRIMULACEAE 

 Primrose Family 



Herbs with perfect regular flowers; calyx 

 free from the ovary, usually 5-parted; co- 

 rolla 5 -cleft; stamens as many as the corolla 

 lobes and opposite to them; flowers purple, 

 yellow or white. 



Lobes of the corolla erect or spreading. 



Leaves in a rosette at the base of the scape. 



Corolla-tube longer than the calyx; flowers pink. 



Primula. 



Corolla-tube shorter than the calyx ; flowers white 



or yellow. Androsace. 



Leaves whorled at the top of the stem; flowers 



white. Trientalis. 



Lobes of the corolla reflexed. Dodecatheon. 



Primula Leaves spatulate or oblong, 



americana obtuse at the apex, narrowed or 



Rydb. somewhat wedge-shaped at the 



Bird's-eye base, tapering into petioles, 



Primrose. .... \ ., -, 



green, usually white -mealy be- 



