1. N. ádvena, Ait. f. _Sepals 6, unequal; petals shorter than the stamens_ and resembling them, thick and fleshy, truncate; stigma nearly entire, 12--24-rayed, pale red; ovary and fruit (1½´ long) ovate, not contracted above into a narrow neck; thin submersed leaves seldom present; floating or emersed and erect leaves thick (6--12´ long), from roundish to ovate or almost oblong, the sinus open, or closed or narrow.--Very common, in still or stagnant water; stout and coarse; flower often partly purplish (var. VARIEGÀTUM, Engelm.). Var. mìnus, Morong. More slender; leaves somewhat smaller (3--8´ long); flowers usually smaller (sepals 12--15´´ long); petals spatulate; stigmas 9--13-rayed, crenately toothed, bright red or crimson; fruit 1´ long, contracted above. (N. rubrodiscum, _Morong._ N. luteum, _Man._; not _Smith_.)--N. Vt. to Mich. and Penn. Probably a hybrid between this and the next species. 2. N. Kalmiànum, Ait. Very slender and with slender rootstock; submersed leaves thin, round-reniform, the floating broadly elliptical with a deep narrow sinus, 2--4´ long; sepals usually 5, the flowers an inch broad or less; petals spatulate or obovate; stigmas 7--10-rayed, dark red; fruit globular with a short neck (6--9´´ in diameter). (N. luteum, var. pumilum, _Man._)--Maine to Penn. and Minn., and northward. 3. N. sagittifòlium, Pursh. Rootstock stout; leaves narrowly oblong to oblong-lanceolate with a short sinus, 6--15´ long; flowers small (1´ broad).--S. Ind. and Ill. (_Schneck_), and southward. ORDER 7. SARRACENIÀCEÆ. (PITCHER-PLANTS.) _Polyandrous and hypogynous bog-plants, with hollow pitcher-form or trumpet-shaped leaves_,--comprising one plant in the mountains of Guiana, another (Darlingtonia, _Torr._) in California, and the following genus in the Atlantic United States. 1. SARRACÈNIA, Tourn. SIDE-SADDLE FLOWER. Sepals 5, with 3 bractlets at the base, colored, persistent. Petals 5, oblong or obovate, incurved, deciduous. Stamens numerous, hypogynous. Ovary compound, 5-celled, globose, crowned with a short style, which is expanded at the summit into a very broad and petal-like, 5-angled, 5-rayed, umbrella-shaped body, the 5 delicate rays terminating under the angles in as many little hooked stigmas. Capsule with a granular surface, 5-celled, with many-seeded placentæ in the axis, loculicidally 5-valved. Seeds anatropous, with a small embryo at the base of fleshy albumen.--Perennials, yellowish-green and purplish; the hollow leaves all radical, with a wing on one side, and a rounded arching hood at the apex. Scape naked, 1-flowered; flower nodding. (Named by Tournefort in honor of _Dr. Sarrasin_ of Quebec, who first sent our Northern species, and a botanical account of it, to Europe.)