5. L. lineàris, Walt. Slender, mostly low; leaves narrowly linear, those of the short runners obovate; minute petals usually present; _bractlets minute at the base of the elongated top-shaped 4-sided capsule_, which is 3´´ long and much longer than the calyx-lobes.--Bogs, pine barrens of N. J., and southward. 6. L. cylíndrica, Ell. Much branched; leaves oblong- or spatulate-lanceolate, much tapering at the base or even petioled; _bractlets very minute at the base of the cylindrical capsule_, which is 3´´ long, and several times exceeds the calyx-lobes.--Swamps, S. Ill. to Fla. and Tex. [*][*] _Leaves all opposite; stems creeping or floating._ 7. L. palústris, Ell. (WATER PURSLANE.) Smooth; leaves ovate or oval, tapering into a slender petiole; petals none, or small and reddish when the plant grows out of water; calyx-lobes very short; capsules oblong, 4-sided, not tapering at base, sessile in the axils (2´´ long).--Ditches, common. (Eu.) 8. L. arcuàta, Walt. Smooth, small and creeping; leaves oblanceolate, nearly sessile; flowers solitary, long-peduncled; petals yellow, exceeding the calyx (3´´ long); capsules oblong-club-shaped, somewhat curved ({1/3}´ long).--Swamps, Va. to Fla. 3. EPILÒBIUM, L. WILLOW-HERB. Calyx-tube not or scarcely prolonged beyond the ovary; the limb 4-cleft or -parted, deciduous. Petals 4. Stamens 8; anthers short. Capsule linear, many-seeded. Seeds with a tuft of long hairs at the end.--Mostly perennials, with nearly sessile leaves, and violet, purple, or white flowers; in summer. A large genus, many of its species of difficult limitation. The following provisional arrangement has been made by Prof. W. TRELEASE, mainly in accordance with Haussknecht's revision of the genus. (Name composed of ἐπί, _upon_, and λόβιον, _a little pod_.) § 1. _Flowers large, purple, in a long raceme; calyx-limb deeply parted; petals entire; stamens and style successively deflexed; stigma of 4 long lobes._ 1. E. angustifòlium, L. (GREAT WILLOW-HERB. FIRE-WEED.) Stem simple, tall (4--7°); leaves scattered, ample, lanceolate, nearly entire.--Low grounds, especially in newly cleared lands; N. Eng. to N. C., west to Minn. and E. Kan., and far north and westward. (Eu., Asia.) § 2. _Flowers mostly small and corymbed or panicled; calyx-limb 5-cleft; petals mostly deeply notched; stamens and style erect._ [*] _Stigma 4-parted; stem terete._ E. HIRSÙRUM, L. Densely soft-hairy, stout, branching (3--5° high); leaves mostly opposite, lance-oblong, serrulate, sessile; flowers in the upper axils or in a leafy short raceme; petals 6´´ long, rose-purple.--Waste grounds, Mass. to N. Y. and Ont. (Nat. from Eu.) [*][*] _Stigma clavate; stem terete, without decurrent lines (or with traces in n. 2); leaves numerous, the lower opposite, subentire, with revolute margins._