282 LENTIBULACEiE. (hLADDKRWORT FAMILY.) 



I- S. floribundus, Kunth. Stem at length much branched ; leaves obo- 

 vate, the lowest tufted, spreading, the others scattered ; racemes many-flowcrcd ; 

 pedicels long, filiform, minutely bracted in the middle ; capsule globose, longer 

 than the calyx ; flowers minute. — Brackish marshes, Florida to Mississippi, 

 and nor'tiiward. May -July. @ — Plant 6'- 12' high, pale green. 



2. S. ebracteatUS, Kunth. Stem simple or sparingly branched, naked 

 above ; leaves spatulate-obovate ; racemes few-flowered ; pedicels brnctlcss ; 

 capsule shorter than the calyx ; flowers conspicuous. — Saline marshes, liorida, 

 and westward. May and June. — Stem 1®- 2'' high. 



Order 88. LENTIBULACEy'E. (Bladderwort Family.) 



Aquatic or marsh lierbs, with entire or dissected leaves, and irregular 

 flowers. — Calyx 2-lipped. Corolla 2-lippcd, personate, spurred at the 

 base. Stamens 2, short, included : anthers 1 -celled. Ovary free, ovoid, 

 1-celled. Ovules numerous, anatropous, inserted on the free central 

 globose placenta. Style short : stigma 2-lippcd, the lower lip larger and 

 covering the anthers. Capsule globose, many-seeded, opening irregularly. 

 Embr)o straight and thick. Albumen none. 



1. UTRICULARIA, L. Bladpfrwokt. 



Lips of the calyx entire. Throat of the corolla nearly closed by the 

 projecting palate ; the lips entire or slightly lobed, the lower one with an ap- 

 presscd or depending spur at the base. — Herbs, floating in still water by means 

 of small air-bladders attached to the finely dissected leaves (or roots), or rooting 

 in damp earth, with entire leaves, and few or no air-bladders. Scapes or pe- 

 duncles 1 - many-flowered. 



* Stem floating : upper leaves whorled, on injlated pctioks ; the others scattered and 

 Jinely dissected : flowers i/tllow. 



1. IT. inflata, Walt. Scape 5 - 10-flowered ; corolla large (ij' wide) ; the 

 lower lip 3-iol)cd, twice as long as the appressed conical notched sjiur, the upper 

 concave, nearly entire; fruit nodding. — Var. minor. Every way smaller; 

 scape 2-flowercd. — Ponds and ditches, Fh)riila to North Carolina, and wcs^ 

 ward. April and May. — Stem 2° long. Scape C- 12' high. 



* * Stan float inf/: leaves all srattered and flncly dissected : floweis ytlow. 



2. U. vulgaris, L. Leaves decompound; .scape scaly, 5 - 1 2-flowercd ; 

 throat of tiie corolla closed by the prominent palate ; the lobes nearly entire, 

 with reflcxcd margins, longer than the conical obtuse somewhat s|)reading 

 spur; fruit nodding. — Ponds and still water, Mississippi to North Carolina, 

 and northward. May -July. — Stem 2*'- 3° long. Scapes G' - 12' iiigli. Co- 

 rolla y wide. 



3. IT. striata, Loconte. Leaves decompound ; scape slender, sparingly 

 bracted, 5 - C-llowered ; lips of the long-pedicelled corolla nearly equal, 3lol>cd ; 



