The family aquarium; or, Aqua vivarium ..being a familiar and complete instructor upon the subject of the construction, fitting-up, stocking, and maintenance of the fluvial and marine aquaria .. . quite a consternation was cre-ated by the choking up of the river in question by a river-weed. This weed, when examined, proved to be theAnacharis. Since then it has made itself a home in theThames, where it is called Water Thyme, and is one ofthe most troublesome of weeds, while in not a few of theEnglish canals it fairly threatens, at times, to lay an em-bargo on navigation. As it is hardy, easily
The family aquarium; or, Aqua vivarium ..being a familiar and complete instructor upon the subject of the construction, fitting-up, stocking, and maintenance of the fluvial and marine aquaria .. . quite a consternation was cre-ated by the choking up of the river in question by a river-weed. This weed, when examined, proved to be theAnacharis. Since then it has made itself a home in theThames, where it is called Water Thyme, and is one ofthe most troublesome of weeds, while in not a few of theEnglish canals it fairly threatens, at times, to lay an em-bargo on navigation. As it is hardy, easily obtained,graceful, gaily colored, prolific, easily thinned out, and ac- THE FAMILY AQUARIUM. tive in its oxygenizing capacity, nothing could be moreappropriate for an Aquarium than the Anacharis Canordensisj or Water-weed. The same high praise may bebestowed on : —No. 11. Tape Grass, which may be had in the HudsonEiver, especially near Newburgh, or in the Delaware andRaritan canal, where it becomes seriously abundant occa-sionally, about Princeton, N. J. The Valtsneria spiraliscame originally from Italy, and is named after VaUsnei,an Italian naturalist, who wrote on insects and plants in. Valisneria spiralis—(Tape Grass.) 4 THE FEESH-WATER AQUAEIUM. 53 the last century. As the male and female flowers of thisplant grow from different roots, care must be taken tosecure both for propagation. They may be distinguishedwithout difficulty. The female flowers are borne on long,spiral foot-stalks ; the male ones are on straight, short,flower-stalks. The female flowers ascend by the assist-ance of a coil and float on the surface of the water. Themale flowers, when matured, gallantly detach themselvesfrom the parent stalk, and follow their feminine relativesto the surface. Here they expand, float among their fa-vorites and impart to them the pollen with which theyare laden. The female plant then descends to the bottomand the process of reproduction goes on agreeably to theorder of nat
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Keywords: ., bookcentury1800, bookdecade1850, bookpublishernewyo, bookyear1858
