120 FLOWERS OF FIELD, HILL, AND SWAMP 



ing, thick, deeply-cleft at their base, a foot long. Time, sum- 

 mer. 



Sepals, 5 or 6, greenish. Petals, numerous, stouter than, 

 and passing into, the stamens. 



This plant is a coarse imitation of the water-lily. It is com- 

 mon, sometimes found in the same waters with the white water- 

 lily. The fruit ripens above water. Without fragrance. 



8 



JV. Kalmianum is slender- stemmed, with thin, roundish, 

 kidney-shaped, submersed leaves, and others larger, floating, 

 broadly elliptical. Flowers yellow-petalled, with red stigmas. 



Maine to Pennsylvania, and westward. 



g. Umbelled Water-pennywort 



HydrocotylB umbellata.— Family, Parsley. Color, white. 

 Leaves, orbicular, crenate, small, with the long petiole fastened 

 to the middle underneafh. Time, June to September. 



Flowers, small, umbelled, pedicelled, white or greenish, from 

 root-stocks creeping in the mud. The leaves are tiny imitations 

 of lily -pads. After flowering, the top of the water where it 

 grows is covered with the specks of white blossoms. Leaf-stalks 



1 to 6 inches long. 



10 



H. veiiicillata sends out runners, and has few flowers in 

 interrupted spikes. Leaves like the last. Flower stems i or 



2 inches long. 



II 



S'ium Carsonii.— Family, Parsley. Color, white. Leahies, 

 pinnate. Leaflets, i to 3 pairs, or a single terminal leaflet, 

 sharply toothed, long and narrow ; submersed leaflets toothed 

 or cut irregularly and deeply. Time, July to October, i or 2 

 feet long. 



Generally growing in water, sometimes along the shore. Flow- 



