most of which are arranged in two rows converging towards the valve.
Some, however, are seated on the margins of the membrane; and the short
ventral surface of the bladder, between the petiole and valve, is
thickly covered with glands. Most of the heads had fallen off, and the
footstalks alone remained; so that the ventral surface and the orifice,
when viewed under a weak power, appeared as if clothed with fine
bristles. The valve is narrow, and bears a few almost sessile glands.
The collar against which the edge shuts is yellowish, and presents the
usual structure. From the large number of glands on the ventral surface
and round the orifice, it is probable that this species lives in very
foul water, from which it absorbs matter, as well as from its captured
and decaying prey.
Utricularia griffithii (Malay and Borneo). The bladders are transparent
and minute; one which was measured being only 28/1000 of an inch (.711
mm.) in diameter. The antenn are of moderate length, and [page 444]
project straight forward; they are united for a short space at their
bases by a membrane; and they bear a moderate number of bristles or
hairs, not simple as heretofore, but surmounted by glands. The bladders
also differ remarkably from those of the previous species, as within
there are no quadrifid, only bifid, processes. In one bladder there was
a minute aquatic larva; in another the remains of some articulate
animal; and in most of them grains of sand.
Utricularia caerulea (India). The bladders resemble those of the last
species, both in the general character of the antenn and in the
processes within being exclusively bifid. They contained remnants of
entomostracan crustaceans.
Utricularia orbiculata (India). The orbicular leaves and the stems
bearing the bladders apparently float in water. The bladders do not
differ much from those of the two last species. The antenn , which are
united for a short distance at their bases, bear on their outer
surfaces and summits numerous, long, multicellular hairs, surmounted by
glands. The processes within the bladders are quadrifid, with the four
diverging arms of equal length. The prey which they had captured
consisted of entomostracan crustaceans.
Utricularia multicaulis (Sikkim, India, 7000 to 11,000 feet). The
bladders, attached to rhizomes, are remarkable from the structure of
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