What's the difference between bladderwort and utricularia?

Bladderwort

Definition:

• (n.) A genus (Utricularia) of aquatic or marshy plants, which usually bear numerous vesicles in the divisions of the leaves. These serve as traps for minute animals. See Ascidium.

Example Sentences:

• (1) The bladderwort ( utricularia ), incognito like a snapdragon, has an ingenious underground lair, vacuum-sucking insects to chambers where they are acidified; pitchers are outwardly passive, but inside their cavernous depths float a mass of drowned flies.

Utricularia

Definition:

• (n.) A genus of aquatic flowering plants, in which the submersed leaves bear many little utricles, or ascidia. See Ascidium,

Example Sentences:

• (1) The bladderwort ( utricularia ), incognito like a snapdragon, has an ingenious underground lair, vacuum-sucking insects to chambers where they are acidified; pitchers are outwardly passive, but inside their cavernous depths float a mass of drowned flies.