LENTIBULARLE. 155 



L. quadrifolia. L. Whorls of 4 or 5 leaves ; low grounds. 



L. ciliata. Mx. Has ciliate petioles ; hedges and banks. 



L. hybrida. Mx. Very like the preceding ; moist grounds. 

 All are rather handsome wild plants, with small yellow flowers. 



Trientalis. L. 7. 1. 



No reason assigned for the name, a third part ; only 2 species, 

 T. EuropcBUj and the one native in this country. 



T. Americana. Ph. Chick Wintergreen. A small, beautiful 

 plant, not green through winter, having a cluster of leaves at the 

 summit with the flowers ; blossoms with white stellate petals. It 

 is little different from the European ; grows in open woods, and 

 blossoms in May. It w^ould form a handsome plant for gardens. 



ORDER 208. LENTIBULARLE. 



Persistent, inferior, divided calyx ; irregular, 2-lipped, mono- 

 petalous, hypogynous corolla, with a spur ; stamens 2, inserted at 

 the base of the corolla ; ovary 1-celled, style 1 ; capsule 1 -celled, 

 many-seeded ; growing in water or marshes ; leaves radical and 

 simple, or compound, similar to roots, bearing little vesicles. 



No known valuable properties ; most abundant within the tropics. 



Utricularia. L. 2. 1. Bladderwort. 



Named from the vesicles on the leaves. Seven species credited 

 to Massachusetts. The vesicles become filled with air, and raise 

 the plant in the spring in the water so that the flower-stalk may 

 rise above the water, and the blossom be fertilized and the fruit 

 perfected. The vesicles contract in the latter part of the season, 

 and the plant sinks. 



U. vulgaris. L. Common Bladderwort. In ponds, floating ; 

 scape 5-9 flowered ; spur incurved ; August. 



U. cornuta. Mx. Leafless Bladderwort. Grows on wet rocks 



