bifid process in the upper part of the bladders of Utricularia. The
narrow transverse orifice (o, fig. 29) is situated between the bases of
the two spiral arms. No valve could be detected here, nor was any such
structure seen by Dr. Warming. The lips of the orifice are armed with
many short, thick, sharply pointed, somewhat incurved hairs or teeth.
The two projecting edges of the spirally wound lamina, forming the
arms, are provided with short incurved hairs or teeth, exactly like
those on the lips. These project inwards at right angles to the spiral
line of junction between the two edges. The inner surface of the lamina
supports two-celled, elongated papillae, resembling those in the upper
part of the neck, but differing slightly from them, according to
Warming, in their footstalks being formed by prolongations of large
epidermic cells; whereas the papillae within the neck rest on small
cells sunk amidst the larger ones. These spiral arms form a conspicuous
difference between the present genus and Utricularia.
Lastly, there is a bundle of spiral vessels which, running up the lower
part of the linear leaf, divides close beneath the utricle. One branch
extends up the dorsal and the other up the ventral side of both the
utricle and neck. Of these two branches, one enters one spiral arm, and
the other branch the other arm.
The utricles contained much dbris or dirty matter, which seemed
organic, though no distinct organisms [page 450] could be recognised.
It is, indeed, scarcely possible that any object could enter the small
orifice and pass down the long narrow neck, except a living creature.
Within the necks, however, of some specimens, a worm with retracted
horny jaws, the abdomen of some articulate animal, and specks of dirt,
probably the remnants of other minute creatures, were found. Many of
the papillae within both the utricles and necks were discoloured, as if
they had absorbed matter.
From this description it is sufficiently obvious how Genlisea secures
its prey. Small animals entering the narrow orifice but what induces
them to enter is not known any more than in the case of
Utricularia would find their egress rendered difficult by the sharp
incurved hairs on the lips, and as soon as they passed some way down
the neck, it would be scarcely possible for them to return, owing to
the many transverse rows of long, straight, downward pointing hairs,
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