GAMOPETAL/ 161 
The flowers are large, yellow, terminal and axillary, 
in panicles more or less compound. The sepals are 
striate, reddish, five, the tips becoming twisted before 
and after flowering. The corolla is rotate, the limb 
divided into five segments. 
The Great Yellow Loosestrife is 3 ft. in height. 
Flowers are to be found between July and September. 
The flowers are trimorphic, two extreme forms 
being connected by transitional forms. The most 
conspicuous form is not self-pollinated. There is no 
honey. 
The petals are red at the base in the dark-yellow 
conspicuous form, and are widely expanded, the 
filaments red at the tip. The style outreaches the 
anthers. Cross-pollination follows insect visits. In 
the second form the petals are light yellow, not so 
spreading, and are directed obliquely upwards. The 
filaments are greenish-yellow. The style is equal in 
length to the two lower stamens. Self-pollination 
in this form occurs if insects do not visit it. In the 
third form the filaments may be red or large, or 
both, or the corolla may be red at the base or 
extending beyond the longer stamens. Bees and 
flies chiefly visit it. 
The capsule contains many seeds, and is five- 
valved, the seeds being shaken out by the wind. 
It is called Golden Loosestrife, Herb Willow, 
Willow Herb, Golden Willow Herb, Yellow Willow 
Herb, Willow-wort, Yellow Rocket. 
It is cultivated, and often found in the garden. 
II 
