738 LENTIBULAKIACEAE (BLADDER WORT FAMILY) 



stems, petioled, decompound, capillary, bearing many bladders ; flowers 2-4, 

 1-1.3 cm. wide ; spur appressed to the 3-lobed 2-sacoate lower lip of the corolla 

 and about half its length.. — Ponds, N. B. to Fla.; also 

 11. Ind. and Mich, to Minn. July-Sept. Fig. 901. 



* * * Scape solitary, slender and naked, or with a feiu 

 small scales, the base rooting in the mud or soil ; 

 leaves small, aiol-shaped or grass-like, often raised 

 out of the water, commonly few or fugacious ; air- 

 bladders few on the leaves or rootlets, or commonly 

 901. U. purpurea. none. 



■I- Flower showy, purple, solitary ; leaves bearing a few delicate lobes. 



10. U. resupinjlta B. D. Greene. Scape 0.5-2 dm. high, 2-bracted above; 

 leaves thread-like, on delicate creeping branches ; corolla 1 cm. long, deeply 

 2-parted ; spur slender-conical, very obtuse, shorter than the dilated lower lip 

 and remote from it, both ascending, the flower resting transversely on the sum- 

 mit of the scape. — Sandy margins of ponds, N. B. to w. Ont., s. to Fla., and 

 the Great L. region. Aug. " 



■I- -1- Flowers minute, purplish or whitish, solitary or few ; leaves entire. 



11. U. cleist6gama (Gray) Britton. Only 2-5 cm. high, bearing 1 or 2 evi- 

 dently cleistogamous flowers (not larger than a pinhead) ; capsule becoming 2 

 mm. long. (U. subulata, var. Gray.) — Sandy and muddy shores, Cape Cod, 

 and southw. Aug., Sept. 



■1- -1- -1- Flowers 2-10, yellow ; leaves entire, rarely seen. 



■w- Stem flexuous ; flowers long-pediceled. 



12. U. subuljlta L. Stem capillary, 2-20 cm. high ; the raceme zigzag ; pedi- 

 cels capillary ; lower lip of the corolla flat or with its margins recurved, equally 

 'A-lobed, much larger than the ovate upper one ; spur oblong, acute, straight, 

 appressed to the lower lip, which it nearly equals in length. — Sandy swamps 

 and pine barrens, Nantucket, Mass., to N. J., Fla., and Tex., near the coast. 

 May-Sept. 



■w ++ Stem strict ; flowers sessile or short-pediceled. 

 = Corolla conspicuously exceeding the calyx. 



13. U. corniita Michx. Stem 0.5-3 dm. high, 1-5-flowered ; corolla 1.5-2 

 cm. broad, the lower lip large and helmet-shaped, its center very convex and 

 projecting, while the sides are strongly reflexed ; upper lip obovate and much 

 smaller ; spur awl-shaped, turned downward and outward, 10-12 mm. long. 

 — Peat-bogs or sandy shores, Nfd. to Ont. and Minn., s. to Fla. and Tex. 

 June-Aug. 



14. U. jiincea "\'ahl. Stem 1-4 dm. high, 4-10-flowered ; pedicels short; 

 corolla barely 1 cm. broad, lower lip obovate, consisting principally of the high- 

 arched palate; spur awl-shaped, about 6 mm. long. — Bogs and wet shores, Va., 

 and southw. June-Sept. 



= = Corolla barely if at all exceeding the calyx. 



15. U. virgdtula Barnhart. Very slender and strict, 2.5-25 cm. high; 

 flowers 2-6, remotely spicate, rarely solitary ; coroUa usually shorter than the 

 purplish calyx ; the upper lip spatulate, emarginate ; the lower laterally com- 

 pressed, apiculate, hairy at throat; the conical spur 2-3 mm. long; capsule 

 subglobose, 1.5-2 mm. in diameter, seeminsly beaked by the persistent acuminate 

 upper calyx-lobe. {U. simplex C. Wright, not R. Br.) —Shores of ponds, pine 

 barrens of L. I. and N. J. ; also Fla. to Miss. Aug. , Sept. (Cuba.) 



2. PINGUfCULA [Tourn.] L. Butterwort 



tJpper lip of the calyx 3-cleft, the lower 2-cleft. Corolla with an open hairy 

 or spotted palate, the lobes spreading. — Small and stemless' perennials, growing 



