Ten of the most popular aquatics (excluding water-lilies): Arrowhead, Sagittaria spp. Arum, Water, Calla spp. Cardinal Flower, Lobelia cardinalis. Flag, Blue, Iris spp.

Floating-heart, Limnanthemum lacunosum. Lotus, American, Nelumbo spp. Pickerel-weed, Pontederia spp.

Most popular aquatics - Continued Swamp-pink, Helonias bullata. Victotta spp. Water-lily, Nymphaa spp.

Four aquatic plants for bogs and gardens: Cardinal Flower, Lobelia cardinalis. Flag, Blue, Iris versicolor. Pitcher Plant, California, Darlingtonia Californica. Swamp-pink, Helonias bullata.

Four aquatics for ponds:

Floating-heart, Limnanthemum lacunosum. Lotus, American, Nelumbo lute a. Pond weed, Cape, A ponogeton distachyum. Water-lily, Nymphcea oaorata, etc.

Four aquatics that bloom in May or earlier: Buck-bean, Menyantlies trifoliata. Goldenclub, Orontium aquaticum. Marsh Marigold, Caltha palustris. Yellow Flag, Iris Pseudacorus.

Four aquatics that bloom in June: Arrowhead, Sagittaria latifolia. Arum, Water, Calla palustris. Flag, Blue, Iris versicolor. Water-lily, Sweet Scented, Nymphaa odorata.

Four aquatics that bloom in July: Bur-reed, Sparganium ramosum. Floating-heart, Limnanthemum lacunosum. Nundo, Ligusticum actœifolium. Pickerel-weed, Pontederia cordata.

Four aquatics that bloom in August: Arrowhead, Sagittaria latifolia. Hemlock, Water, Cicuta maculata. Rice, Indian Water, Zigania miliacea. Sundew, Drosera rotundifolia.

Four aquatics that bloom in September or later: Cardinal Flower, Lobelia cardinalis. Pondweed, Cape, A ponogeton distachyum. Sundew, Drosera filiformis. Water-lily, Sweet Scented, Nymphaa odorata.

Four aquatics less than one foot above the pond surface: Arum, Water, Calla palustris. Floating-heart, Limnanthemum lacunosum. Pitcher Plant, California, Darlingtonia Californica. Pond weed, Cape, Aponogeton distachyum.

Four aquatics from one to three feet high: Flag. Blue, Iris versicolor. Pickerel-weed, Pontederia cordata. Pink, Swamp, Helonias bullata. Turtlehead, Chelone glabra.

Four aquatics more than three feet high: Aster, Purple Stem, Aster puniceus. Cat-tail, Broad-leafed, Tytoha latifolia. Nundo, Ligusticum actæifolium. Rice, Indian Water, Zigania miliacea.

Four aquatics likely to spread unduly: Arrowhead, Sagittaria spp. Cat-tail, Typha spp. Golden-club, Oronitum spp. Floating-heart, Limnanthemum lacunosum.