utriculiferous

Did the three species just named, like their close allies, the several species of Utricularia, aboriginally possess bladders on their rhizomes, which they afterwards lost, acquiring in their place utriculiferous leaves?

Insectivorous Plants Charles Darwin 1845

-- This species has been described and figured by Dr. Warming, * who states that it bears two kinds of leaves, called by him spathulate and utriculiferous.

Insectivorous Plants Charles Darwin 1845

-- Fragments of the utriculiferous leaves of this species exhibited the same structure as those of

Insectivorous Plants Charles Darwin 1845

In support of this view it may be urged that the bladders of Genlisea filiformis appear from their small size and from the fewness of their quadrifid processes to be tending towards abortion; but why has not this species acquired utriculiferous leaves, like its congeners?

Insectivorous Plants Charles Darwin 1845

The accompanying figure (fig. 29) of one of the utriculiferous leaves, about thrice enlarged, will illustrate the following description by my son, which agrees in all essential points with that given by Dr. Warming.

Insectivorous Plants Charles Darwin 1845