3<5° 



Ifoerbaceous plants. 



naturalized. Desirable. The floating water-plantain (A. 

 natans) is a very handsome plant of ponds and stagnant 

 Avater; flowers showy, white, solitary from the axils of the 

 long-stalked, small, elliptical leaves. 



Arrow-Head, Sagittaria sagittifolia. — A handsome plant 

 for shallow water, growing less than two 

 feet high. Leaves hastate, all radical. 

 Flowers in a small raceme as tall as the 

 leaves, half an inch across; petals three, 

 pure white, stamens yellow. Fine in cis- 

 terns or small ponds, planted in tubs. 



Water Poppy, Lirnnocharis Humholdtii. 

 — The showiest of the more common plants 

 of the family, tender in the North but 

 may be used anywhere for summer display. 

 Leaves rounded, bright green, floating. 

 Flowers solitary, large, with three sulphur- 

 yellow petals. The plant flowers con- 

 stantly in summer. It may be planted in shallow pans in 

 rich soil and sunk a few inches below the surface of the 

 water. Stored iu a greenhouse in winter. 



FIG. 157.— ARROW-HEAD 

 (SAGITTARIA SAGITTI- 

 FOLIA). 



THE PONTEDERIA FAMILY. 



Water Hyacinth, Mchornia crasxipe*. — A floating plant 

 with swollen leaf-stalks, rounded leaves in rosettes, and 

 erect racemes of blue flowers in summer. Racemes of flow- 

 ers resembling hyacinths. May be grown and treated in 

 the same manner as water poppy, but needs no soil. Pick- 

 erel-weed {Ponf(<l< rid' cordata) is of a similar habit but has 

 smaller flowers. It is perfectly hardy. 



