Embedded in the incurved margin of the rim which affords a very insecure foothold to insects, are a number of large glands excreting a sweet juice.
For the distillation of liquids the retort is usually a cylindrical pot placed vertically; cast iron is generally employed, in which case the bottom is frequently incurved and thicker than the sides in order to take up the additional wear and tear.
The feathers which form this remarkable adornment are, like those of the "ear-tufts," stiff and incurved at the end, but much longer - measuring more than 2 in.
Helichrysum bracteatum: half-hardy, 2 ft.; the incurved crimson, rose and other forms very handsome.
When a fly is captured, the viscid excretion becomes strongly acid and the naturally incurved margins of the leaf curve still further inwards, rendering contact between the insect and the leaf-surface more complete.