AMERICAN 
MEDICAL BOTANY. 
a 
PYROLA UMBELLATA, 
Winter Green. 
— 
PLATE XI. 
2 most beautiful of the species of Pyrola 
is extensively diffused throughout the northern 
hemisphere. It inhabits ail latitudes in the Unit- 
ed States, and extends across the continent to the 
shores of the Pacific ocean. It is also found in the 
forests of Siberia, and in several of the northern 
and temperate countries of Europe. It only 
grows in shady woods, where it is protected from 
the sun, and nourished by the peculiar soil formed 
‘from the decomposition of leaves and wood. The 
most common appellations, by which it is known 
in the United States, are Winter green and Pipsis- 
sewa. It flowers in June and July, being some- 
what later than most of the other species of its 
family. 
sie 
