File:Goldfish breeds and other aquarium fishes, their care and propagation - a guide to freshwater and marine aquaria, their fauna, flora and management. With 280 explanatory illustrations, printed with (14766065882).jpg

Identifier: goldfishbreedsot00wolf (find matches)
Title: Goldfish breeds and other aquarium fishes, their care and propagation : a guide to freshwater and marine aquaria, their fauna, flora and management. With 280 explanatory illustrations, printed with the text
Year: 1908 (1900s)
Authors: Wolf, Herman Theodore, 1855-
Subjects: Aquariums Goldfish
Publisher: Philadelphia : Innes & sons
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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he Fall, which drop to the bottom anddevelop in the following Spring. It is a verit-able pest, as it chokes up canals and waterways. Anacharis canadensis (Mich.) A. alsinastrum / r> 1 \ i^- 1 11 FIG. 123. Ditchmoss or Anacharis, (Bab.), iMg. 123, IS the Species mOSt generally Anacharis canadensis; also a modified to be found and has a weak jointed stem with formandl«-s- Redu«d one-four<h-the leaves in whorls of 4s to 8s or the lower leaves opposite, linear andminutely toothed. The white pistillate flowers develop on calyx tubesfrom 2 to 12 inches long. The Common Anacharis A. canadensis, Fig. 123, thrives fairly well inthe aquarium, is a good oxygenator, but is so weak and fragile that it willeasily break into sections. It should be planted in the sand or pebbles ingroups of 4 to 10 stalks. Freshwater fishes and goldfishes feed upon theleaves and in the aquarium frequently entirely destroy the plant. Whenfound in cold water streams the plants are more robust and the leaves 196
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AQUATIC PLANTS OF I-RF.SHWATKR broader, fuller and more pointed than those of quiet or stagnant water,which probably caused it to be considered a different species. It is avery pretty aquarium plant but difficult to maintain in satisfactory condi-tion, except with such fishes as will not molest it. Anacharis canadensis gigantea or Elodea canadensis gigantea (Hort.)Fig. i 24, is a cultivated species derived from A. canadensis^ the most gen-erally distributed native form. It has a thick jointed stem and leaves 1 to 1 y2 inches long, inwhorls of 4 to 8, with adense cluster of the longslender leaves at the endsof the stalks. It usuallygrowswithout much branch-ing. In general appearanceit considerably resemblesHippuris and is an attrac-tive aquarium plant whichgrows to a length of 3 to 4feet below and on the sur-face of the water. Its coloris a delicate greyish-green,the younger growth usuallya bright green, sometimesmarked with white. Lessfragile than A. canadensis^it is a good oxygenator

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