. Freaks and marvels of plant life; or, Curiosities of vegetation. Plant anatomy. FREAKS OF PLANT LIFE. (Utricularianeglecta and Utricularia vulgaris), fig. 19. These are aquatic, commonly found in dirty ditches,. or, as has been said, " remarkably foul ; They float freely, not being attached by roots at any period of their existence. The leaves are deeply divided into narrow filaments, each terminating in a short straight point, like a bristle. Small inflated vesicles,. or bladders, seated on the leaves, originated the name of bladdenvort. It' is sometimes stated that these
. Freaks and marvels of plant life; or, Curiosities of vegetation. Plant anatomy. FREAKS OF PLANT LIFE. (Utricularianeglecta and Utricularia vulgaris), fig. 19. These are aquatic, commonly found in dirty ditches,. or, as has been said, " remarkably foul ; They float freely, not being attached by roots at any period of their existence. The leaves are deeply divided into narrow filaments, each terminating in a short straight point, like a bristle. Small inflated vesicles,. or bladders, seated on the leaves, originated the name of bladdenvort. It' is sometimes stated that these bladder-s are filled with air, and serve to buoy up the plant in the water. That such an assertion is erroneous may be inferred from the fact" that although they often enclose a little bubble of air, they are usually filled r-. „, ,, with water; that branches float Fig. 20.—Bladder ' aiUtriculariavul- equally well without them ; and that garis, enlarged. their elaborate construction indicates, a much more complex function, what- ever that function may be. The chief point of interest is offered by these bladders, the minute structure of which is exhaustively treated in-Mr. Darwin's work, but our purpose may be served by a meagre outline. When full grown the bladders are nearly one-tenth of an inch in length, nearly egg-shaped (fig. 20) with the smaller end up- wards, and attached obliquely towards the base. The upper, or smaller, end is furnished with six or seven. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Cooke, M. C. (Mordecai Cubitt), b. 1825. London, Society for Promoting Christian Knowledge; New York, E. & J. B. Young
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectplantanatomy, bookyea
