126 SELECTED WESTERN FLOEA 



2-lipped, the upper erect, the lower larger, spreading, spurred at the 

 base, with a projection almost closing the throat; stamens 2, the 

 anthers united ; ovary 1-celled; fruit a many-seeded capsule. 



1. UTRICULARIA. Bladdeewort. ' 



Calyx 2-lobed, the lobes nearly equal; corolla bearded in the 

 throat; flowers in racemes. Herbs, free-floating or rooting, with 

 finely dissected leaves, and bearing small bladders which serve to 

 float the plant or to secure food. 



1. U. vulgaris, L. 



Free-floating, scape stout, almost naked, 3-12 in. high; leaves 2 or 3-pin- 

 nately divided, crowded, borne on branches 6-12 in. long, and bearing many 

 bladders among the leaves; flowers showy. Stagnant water, Man.-Alta., 

 common. 



2. U. intermedia, Hayne. 



Scape slender, 2-8-in. high ; branches floating, short, 3-6 in. long ; leaves 

 somewhat scattered; bladders usually borne on leafless branches; flowers 

 yellow, with a spur nearly as long as the lip. Shallow water, or creeping on 

 the mud, Man.-Alta., not confmon. 



2. PINGUICULA. BUTTEEWOHT. 



Calyx 2-hpped, the upper 3-cleft, the lower 2-cleft; corolla 

 2-lipped, the upper 2-cleft, the lower 3-cleft, the lobes all spreading, 

 spurred, throat open. Small stemless perennials with 1-flowered 

 scape and 3 or 4 fleshy, somewhat greasy leaves at the base. 



1. P. vulgaris, L. 



Leaves spatulate to elliptical; corolla pale violet, striped with yellow on 

 the throat. Bogs and wet rocks. Rocky Mts. and foothills. 



LXXIX. OROBANCHACE.ffi (Broom-rape Family). 



Low fleshy herbs without green foliage. Calyx 4 or 5-toothed; 

 corolla 2-lipped, persistent; stamens 4, didynamous, on the corolla 

 tube; capsule 1-celled, many-seeded. 



1. OROBANCHE. Broom-rape; Cancer- root. 



Calyx almost equally 5-cleft; corolla 2-lipped, the upper 2-lobed, 

 the lower spreading, 3-lobed; stigma 2-lipped; flowers solitary or in 

 spikes on a naked or braoted stem. Viscid, pubescent, root-para- 

 sitic herbs with more or less scaly brownish stems. 



