Propagated by seeds; the plants, however, will not flower at the north until the second season; protection of a frame is required.

Wallichia, Wrightia. Palmæ.

May be increased by seeds; or by suckers, which should be gradually separated so as to allow them to make sufficient roots before they are quite detached.

Walnut. See [Juglans].

Water-Cress (Nasturtium officinale). Cruciferæ.

Cuttings of the young stems, which root in mud with great readiness. Seeds scattered in the water or mud.

Water Lily. See [Nymphæa], Nelumbo and Victoria.

Water-Melon (Citrullus vulgaris). Cucurbitaceæ.

Seeds, usually sown where the plants are to remain, after the weather is warm and settled.

Watsonia (Bugle Lily). Irideæ.