THE FRESH-WATER AQUARIUM. 



45 



1. Water Lobelia . . 



2. hornwort .... 



3. Broad-leaved Starwort 



4. Narrow-leafed Do. 



5. River Weed . . . 



6. Golden Club . . . 

 *l. Sweet Flag . . . 



8. Naiad 



9. Pond Weed . . . 



10. Water Weed . . , 



11. Tape Grass . . . 



12. Water Star-grass . 



13. Quillwort . . . 



14. Water Cress . . 



15. White Water-lily . 



16. Yellow Do. 

 It. Small Yellow Do. 



18. Duckweed .... 



19. Common Dock . . 



20. Common Eush . . 



21. Water Violet . . 



22. Spikewort . . . 



23. Brooklime .... 



24. The Ferns . . . 



25. Forget-me-not . . 



Lobelia dortmanna, 

 Ceratophyllum demersum: 

 Callitriche verna. 

 Callitriche autumnalis. 

 Podostemon aratojphyllum, 

 Orontium aquaticum, 

 Acorus calamus. 

 Naias fiezihs. 

 Potamogeton. 

 Anacharis Canadensis. 

 Valismria s^h'alis. 

 Scholhra graminea. 

 Isoetes lacustris. 

 Nasturtium officinalis, 

 Nymj}hea alba. 

 Nujphar lutea. 

 Nujphar pumila. 

 Lemna tribe. 

 Rumex aquaticus. 

 Juncus and Scirjpus tribes. 

 Hottonia palustris. 

 Myriophyllum sjpicatum. 

 Veronica beccabunga. 



We might increase this list indefinitely ; but, of the 

 number we have thus presented merely to give an idea 



