562 



LENTIBULARIACEAE 



LENTI BULARI ACE AE 



Bracts at the base of the pedicels without bractlets; calyx not en- 

 closing the fruit. 

 Branches verticillate, decompound; lateral lobes of lower lip of 



corolla saccate. 

 Branches alternate or none; lateral lobes of lower lip of corolla 

 not saccate. 

 Bracts and scales if present, flat, basally attached; aquatic 

 Bract solitary, tubular, surrounding the scape; scales none. 

 Bracts and scales peltate; terrestrial. 

 Bracts at the base of the pedicels with a pair of bractlets; calyx en- 

 closing the fruit. 



i. Vesiculina Raf. 

 i. V. purpurea (Walt.) Raf. {Utricularia purpurea Walt.). In 

 ponds: Me. to Fla. and La., near the coast; Ind. to Minn. 

 Conn. Mostly near the coast, decreasing inland. 

 N. Y. Apparently confined to L. I., rare. 



N. J. Throughout the coastal plain, more common in the pine- 

 barrens than elsewhere. 

 Pa. Known only from near Great Lake, Carbon Co. 



i. Vesiculina. 



2. Utricularia. 



3. Lecticula. 



4. Setiscapella. 



5. Stomoisia. 



2. Utricularia L. 



Scape with a whorl of inflated floats. 

 Scape without floats. 

 Stems floating. 



Scapes 6-20-flowered, with 1-5 scales; no cleistogamous 



flowers. 

 Scapes 2-5-flowered, without scales; cleistogamous 

 flowers present. 

 Stems creeping on the bottom in shallow water. 



Spur and palate conspicuous; fruiting pedicels ascending. 

 Segments of some leaves linear, flat, bristly-ciliate; 



upper lip of corolla half as long as lower. 

 Leaf-segments all capillary; corolla lips nearly equal. 

 Spurs stout, conic, shorter than the lower lip. 

 Spur slender, equalling the lower lip or longer. 

 Spur tapering from base to apex; leaves all 



bladder-bearing. 

 Spur conic at base, linear above; leaves not 

 all bladder-bearing. 

 Spur a mere sac; palate obsolete; fruiting pedicels re- 

 curved. 



1. U. radiata. 



2. U. macrorhiza. 



3. U. geminiscapa. 



4. U. intermedia. 



5. U. gibba. 



6. U. pumila. 



7. U. fimbrosa. 



8. U. minor. 



1. U. radiata Small. In ponds: Me. to Fla. and Tex., near the 

 coast. 

 Conn. Rare over most of the state, decreasing inland. 



