9. U. purpùrea, Walt. Leaves whorled along the long immersed free floating stems, petioled, decompound, capillary, bearing many bladders; flowers 2–4 (6´´ wide); spur appressed to the 3-lobed 2-saccate lower lip of the corolla and about half its length.—Ponds, Maine and N. Penn. to Fla., mainly near the coast; also Lake Co., Ind.
[*][*][*] Scape solitary, slender and naked, or with a few small scales, the base rooting in the mud or soil; leaves small, awl-shaped or grass-like, often raised out of the water, commonly few or fugacious; air-bladders few on the leaves or rootlets, or commonly none.
[+] Flower purple, solitary; leaves bearing a few delicate lobes.
10. U. resupinàta, B. D. Greene. Scape (2–8´ high) 2-bracted above; leaves thread-like, on delicate creeping branches; corolla (4–5´´ long) deeply 2-parted; spur oblong-conical, very obtuse, shorter than the dilated lower lip and remote from it, both ascending, the flower resting transversely on the summit of the scape.—Sandy margins of ponds, E. Maine to R. I., near the coast; also N. New York and Presque Isle, L. Erie.
[+][+] Flowers 2–10, (chiefly) yellow; leaves entire, rarely seen.
11. U. subulàta, L. Stem capillary (3–5´ high); pedicels capillary; lower lip of the corolla flat or with its margins recurved, equally 3-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.
Var. cleistógama, Gray. Only 1–2´ high, bearing 1 or 2 evidently cleistogamous purplish flowers, not larger than a pin's head; capsule becoming 1´´ long. (The unnamed Utricularia in the Man., p. 320).—With the ordinary form; Barnstable and Nantucket, Mass., pine-barrens of N. J., and southward.
12. U. cornùta, Michx. Stem strict (3´–1° high), 1–5-flowered; pedicels not longer than the calyx; corolla 1´ long, the lower lip large and helmet-shaped, its centre very convex and projecting, while the sides are strongly reflexed; upper lip obovate and much smaller; spur awl-shaped, turned downward and outward, about as long as the lower lip.—Peat-bogs, or sandy swamps, Newf. to Minn., south to Fla. and Tex.; common.
2. PINGUÍCULA, Tourn. Butterwort.
Upper 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 on damp rocks, with 1-flowered scapes, and broad and entire leaves, all clustered at the root, soft-fleshy, mostly greasy to the touch (whence the name, from pinguis, fat).