226 THE POETRY OF FLOWERS 
TRANQUILLITY. 
ROCK MADWORT. 
There is a gentle element, and man 
May breathe it with a calm unruffled soul, 
And drink its living waters, till his heart 
Is pure, and this is human happiness. 
Wilijs. 
This plant was esteemed by the ancients on account of its 
supposed power to allay anger. The species generally are 
showy plants, and of easy culture. The rock madwort is very 
ornamental early in the season. 
My heart is like a sleeping lake, 
Which takes the hue of cloud and sky, 
And only feels its surface break, 
When birds of passage wander by, 
Who dip their wings and upward soar, 
And leave it quiet as before. 
Willis. 
TREACHERY. 
BILBERRY. 
X 
This species of whortleberry is an elegant and also a fruit¬ 
bearing plant. “ The young fresh green leaves, and waxlike 
red flowers, appear in May, and toward autumn the leaves grow 
darker and firm, and the ripe berries are gathered in the north 
