Class Vlll. Order I. 145 



HEPTANDRIA. 

 MOJYOGYJYM. 



157. TRIENTALIS. 



TRIENTALIS AMERICANA. Ph. American Trientalis. 



Leaves lanceolate, serrulate, acuminate ; petals acu- 

 minate. 



Syn. TKIENTALIS EUROPEA. MX. 



A plant seldom exceeding half a foot in height, having its 

 leaves chiefly in a tuft or whorl at the top, with one or more 

 white star-like blossoms above. Leaves lanceolate, minutely 

 serrate, shining, acuminate, pointed. Flowers on filiform pedun- 

 cles. The number of stamens and divisions of the calyx and co- 

 rolla is commonly seven, but often varies to six or eight ; seg- 

 ments of the calyx linear. Petals ovate, acuminate. In low 

 woods, particularly among the pine trees on Craigie r s road. 

 May, June. Perennial. 



On comparison of specimens I am satisfied that the American 

 species is distinct from the European in having the leaves 

 minutely serrulate, and the petals acuminate ; though these 

 marks are not noticed by Pursh. 



Class VIII. OCTANDRIA. Eight stamens. 

 Order 1. MOJYOGYJYM. One style. 



158. EPILOBIUM. Calyx four cleft, tubular, su- 

 perior ; corolla four petalled ; capsule oblong ; seeds 

 feathered. 



159. (ENOTHERA. Calyx four cleft, tubular, su- 

 perior ; corolla four petalled ; capsule four celled, 

 four valved ; seeds naked. 



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