394 LENTIBULARIACEAE. 



1. UTRICULARIA L. Sp. PI. 18. 1753. 



Aquatic herbs, the submersed stems with finely divided leaves bearing 

 minute bladders. Flowers racemose or solitary at the summits of the scapes, 

 each pedicel with a single bract at its base. Calyx 2-parted, the lobes herb- 

 aceous. Corolla strongly '2-lipped, the lower lip with a prominent 2-lobed 

 palate. [Latin, utriculus, a little bag.] About 75 species, of wide distribu- 

 tion. Type species: Utricularia vulgaris L. 



Stems free-floating: scapes many-flowered; pedicels recurved in fruit. 1. U. foliosa. 

 Stems creeping on the bottom in shallow water ; scapes 1-4-flowered ; 



pedicels straight, ascending in fruit. 2. U. pumila. 



1. Utricularia foliosa L. Sp. PL 18. 1753. 



Stems elongate, up to 25 dm. or more long, free-floating except for a 

 single point of attachment. Leaves 3-10 cm. long, forked at the base, each 

 fork pinnately dissected into numerous capillary segments, often copiously 

 bladder -bearing ; scapes solitary, 1-3 dm. high, 10-20-flowered; pedicels re- 

 curved in fruit; corolla yellow, 15-20 mm. broad; spur slenderly conic, shorter 

 than the lower lip; capsules few-seeded. 



Fresh water of a palmetto swamp at Barnett's Point, Great Bahama : Florida 

 to Louisiana ; Cuba ; Haiti ; Jamaica. Leafy Bladderwort. 



2. Utricularia pumila Walt. Fl. Car. 64. 1788. 



Stems short, creeping on the bottom in shallow water, radiating from the 

 base of the scape. Leaves less than 1 cm. long, dichotomously divided into 

 few capillary segments, bladder-bearing; scapes solitary or 2 together, 5-12 

 cm. high, 1-4-flowered; pedicels erect-ascending in fruit; corolla yellow, 12-15 

 mm. broad; spur slenderly conic or subulate, equalling or usually exceeding the 

 lower lip; capsules many-seeded. 



In shallow water, Great Bahama, Andros, New Providence, Great Exuma : 

 eastern United States. Specimens from Andros, without flowers, were doubtfully 

 determined by Morong as U. foliosa L. and as U. gibba L. ; the former is certainly, 

 the latter probably, referable to this species. Two-flowered Bladderwort. 



2. SETISCAPELLA Barnh. in Small, Fl. Miami 170. 1913. 



Terrestrial herbs, with short root-like branches from the base of the scape, 

 the delicate and evanescent leaves and minute bladders rarely seen. Flowers 

 in zig-zag racemes or solitary at the summits of the wiry scapes, each pedicel 

 with a single peltate bract at its base. Calyx 2-parted, the lobes scarious, 

 ribbed. Corolla 2-lipped, the lower lip divergently 3-lobed, with a prominent 

 2-lobed palate. [Latin, seta, bristle, and scapus, scape.] About 12 species, 

 in Asia, Africa and America, the following typical. 



1. Setiscapella subulata (L.) Barnh. in Small, Fl. Miami 170. 1913. 



Utricularia subulata L. Sp. PI. 18. 1753. 



Stems and leaves usually evanescent before flowering-time. Scapes 3-20 

 cm. high, filiform, bronze-colored, 1-12-flowered; pedicels ascending; corolla 

 yellow, 4-6 mm. broad; spur appressed to the lower lip and nearly or quite 

 equalling it in length. 



In mud, near Deep Creek, Andros : eastern United States ; Cuba ; Porto Rico ; 

 northern and eastern South America. Zig-zag Bladderwort. 



