Vol. III.] 



BLADDERWORT FAMILY. 



191 



7. Utricularia purpurea Walt. Pur- 

 ple Bladderwort. (Fig. 3348.) 



Utricularia purpurea Walt. Fl. Car. 64. 1788. 

 Utricularia saccata Ell. Bot. S. C. & Ga. 2: 21. 

 1816. 



Scape i / -6 / high, naked, or bearing a few 

 scales, 1-4-fiowered. Branches floating, long, 

 with numerous dichototnous capillary leaves 

 in verticils of 4's and 5's and many large 

 bladders; corolla violet-purple, 3 // -8 // broad, 

 the lower lip 3-lobed, the lateral lobes sac- 

 cate; upper lip truncate, emarginate; spur 

 nearly conic, appressed to the lower lip and 

 one-half its length, or more. 



In ponds, Maine to Florida, near the coast; 

 also in Indiana. May-Aug. 



8. Utricularia vulgaris L. Greater 

 Bladderwort. Hooded Water-Mil- 

 foil. Pop- weed. (Fig. 3349.) 



Utricularia vulgaris E. Sp. PI. 18. 1753. 

 Utricularia macrorhiza I,e Conte, Ann. Lvc. 

 N.Y.i. -73. 1824. 



Scapes stout, naked, or with a few broad 

 scales, 3 / -i4 / high. Leaves 2-3-pinnately 

 divided, usually much crowded, the seg- 

 ments setaceous; branches floating, some- 

 times ilong, the leaves sometimes 6 // ~7 // 

 long with numerous bladders; flowers 3-20, 

 racemose, yellow; pedicels 4 // -8 // long, re- 

 curved in fruit; corolla %' broad or more, 

 the sides of the lips reflexed; palate promi- 

 nent; upper lip nearly entire, the lower 

 slightly 3-lobed and longer than the conic 

 blunt or acutish, somewhat curved spur. 



In brooks and ponds, Newfoundland to Florida, west to British Columbia and California, 

 throughout nearly the whole of North America. 

 Also in Europe, Asia, Cuba and Mexico. June-Aug. 

 The plant, like others of the genus, is often prop- 

 agated by winter buds. 



9. Utricularia clandestina Nutt. Hid- 

 den-fruited Bladderwort. (Fig. 3350.) 



U. clandestina Nutt.; A. Gray, Man. 287. 1848. 

 Utricularia striata Tuckerm. Am. Journ. Sci. 45: 

 29. 1843. Not Le Conte, 1824. 



Scape slender, 2 / -5 / high, arising from long 



floating branches. Leaves scattered, repeatedly 



forked, the divisions capillary, bearing numerous 



bladders. Flowers of two kinds; those of the 



scape 3-5, complete, those among the leaves 



strictly cleistogamous, numerous, their pedicels 



reflexed in fruit; corolla of the upper complete 



flowers yellow, spreading, 4 // -5 // broad when 



expanded, the lips nearly equal in length, the 



lower broader and 3-lobed; spur shorter than the 



lower lip, thick, obtuse, approximate to it. 



In shallow ponds, New Brunswick to New Jersey, 

 near the coast. July. 



