ROSEBAY 47 
in some the stigma is ripe first, and self-pollination would occur if 
insects did not visit them. 
The flowers are large and purple, in a tall, conspicuous spike, and 
are much visited by insects. Honey is secreted by the green, fleshy 
upper surface of the ovary, and is easily reached by insects, but pro- 
tected from the rain, as it then bends over. The expanded, flattened 
lower ends of the fila- 
ments or anther-stalks 
form a hollow cone, 
which encloses the 
base of the style and 
the honey surround- 
ing it, protecting the 
latter; and where 
the style issues at 
the apex of the cone 
hairs prevent the en- 
trance of rain, while 
insects can gain access 
through the anther- 
stalks. 
In young flowers 
pollen covers the 
stamens above, and 
they project, but the 
style is short and bent 
over, with the stigmas 
folded together; but 
in older flowers the 
empty stamens are 
Photo. B. Hanley 
bent down and turn Rosesay (Epilobium angustifolium, L.) 
outward, and the style 
is longer and projects forward, with 4 stigmas outspread and recurved 
taking the place of the stamens. The insects can alight, suck, and 
collect pollen easily. Cross-pollination is secured, and self-pollination 
is impossible. The flowers are visited by Afzs, Bombus, Sphecodes, 
Nomada, Cerceris, Crabro, Ammophila, Tenthredo, Empis, Syrphus, 
Ino stattces. 
The seeds are provided with a tuft of hairs, which aid them in 
their dispersal by the wind after the pods or long narrow capsules have 
split open to release them. The pods split from above downwards 
