. Goldfish varieties and tropical aquarium fishes; a complete guide to aquaria and related subjects. 129. Cultivated Lud\vigi.\ (Life sice) 182 GOLDFISH VARIETIES AIS^D SPATTERDOCK Among the newer introductions into the aquarium are the submergedSpatterdocks. The large arrow- or spade-shaped leaves make a verycharacteristic appearance. Seedling plants gathered from lakes and pondsin the fall will do well in the aquarium over winter. If summer leavesappear and become too large for the aquarium the plant had best be re-moved. The Southern Spatterdock, Nuphar sagittcvfolia, does not. Fig. 1
. Goldfish varieties and tropical aquarium fishes; a complete guide to aquaria and related subjects. 129. Cultivated Lud\vigi.\ (Life sice) 182 GOLDFISH VARIETIES AIS^D SPATTERDOCK Among the newer introductions into the aquarium are the submergedSpatterdocks. The large arrow- or spade-shaped leaves make a verycharacteristic appearance. Seedling plants gathered from lakes and pondsin the fall will do well in the aquarium over winter. If summer leavesappear and become too large for the aquarium the plant had best be re-moved. The Southern Spatterdock, Nuphar sagittcvfolia, does not. Fig. 130. Southern Spatterdock {Reduced one-half) develop aerial leaves, but they gradually lengthen as the warm season pro-gresses. Figure 130 shows the plant in March. Later the stems andleaves will be longer. In October a new growth starts close to the thick,running root or rhizome. The leaves of this Spatterdock are of the bright-est green hue and do not darken in strong light. Where the rhizomeshave been broken off they have a tendency to rot, eventually killing theplant. This seems to be overcome by planting in sweet soil. TROPICAL AQUARIUM FISHES 183
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