AQUATIC PLANTS. The culture of Aquatic Plants, both indoors and in the open air, has been greatly neglected of late years; they are, therefore, rarely seen to perfection in places other than where their culture is made a speciality. Generally speaking, they are most easily grown. The following stove and greenhouse genera are well worth attention: Aponogeton, Cyperus, Damasonium, Herpestis, Limnocharis, Nelumbium, Nymphaea, Ouvirandra, Pistia, Pontederia, Salvinia, Thalia, Trianea, Victoria. Many species belonging to some of the foregoing genera are hardy, as are also the following: Alisma, Butomus, Calla, Hottonia, Menyanthes, Nuphar, Polygonum, Sagittaria, Trapa, Typha, Villarsia.