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 antennae 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 antennae 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 antennae, 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 the antennae.  These are broad, flattened, and of large size; they bear on their margins multicellular hairs, surmounted by glands.  Their bases are united into a single, rather narrow pedicel, and they thus appear like a great digitate expansion at one end of the bladder.  Internally the quadrifid processes have divergent arms of equal length.  The bladders contained remnants of articulate animals. [page 445]

Polypompholyx.

This genus, which is confined to Western Australia, is characterised by having a “quadripartite calyx.”  In other respects, as Prof.  Oliver remarks,* “it is quite a Utricularia.”