S. VACCÀRIA, L. Annual, glabrous; flowers in corymbed cymes; calyx 5-angled, enlarged and wing-angled in fruit; petals pale red, not crowned; leaves ovate-lanceolate. (Vaccaria vulgaris, _Host._)--Occasionally spontaneous. (Adv. from Eu.) 4. SILÈNE, L. CATCHFLY. CAMPION. Calyx 5-toothed, 10--many-nerved, naked at the base. Stamens 10. Styles 3, rarely 4. Pod 1-celled, sometimes 3-celled at least at the base, opening by 3 or 6 teeth at the apex.--Flowers solitary or in cymes. Petals mostly crowned with a scale at the base of the blade. (Name from σίαλον, _saliva_, from the viscid exudation on the stems and calyx of many species. The English name _Catchfly_ alludes to the same peculiarity.) [*] _Dwarf, alpine, tufted, smooth, perennial; flowering shoots 1-flowered._ 1. S. acaùlis, L. (MOSS CAMPION.) Tufted like a moss (1--2´ high); leaves linear, crowded; flowers almost sessile, or rarely on a naked peduncle; petals purple or rarely white, notched or entire, crowned.--Alpine summits of the White Mountains, N. H. July. (Eu.) [*][*] _Calyx bladdery-inflated; perennial; flowers panicled, white, in summer._ 2 S. Stellàta, Ait. (STARRY CAMPION.) _Leaves in whorls of 4, ovate-lanceolate_, taper-pointed; calyx bell-shaped; _petals cut into a fringe, crownless_.--Wooded banks, R. I. to Minn., and southward.--Stem 3° high, with a large and open pyramidal panicle. Corolla ¾´ broad. 3. S. nívea, Otth. _Leaves opposite, lanceolate or oblong_, taper-pointed; calyx oblong; _petals wedge-form, 2-cleft, minutely crowned_.--Penn. to Iowa and Minn.; rare.--Stem 1--2° high, almost smooth. Flowers few, larger than in the last. S. CUCÙBALUS, Wibel. (BLADDER CAMPION.) _Glaucous; leaves opposite, ovate-lanceolate; calyx globular, much inflated_, elegantly veined; petals 2-cleft, nearly crownless. (S. inflata, _Smith_.)--Fields and roadsides, E. New Eng. to Ill.--A foot high. Flowers loosely cymose. (Nat. from Eu.) [*][*][*] _Calyx elongated or club-shaped, not inflated except by the enlarging pod; flowers cymose or clustered; perennial, pubescent with viscid hairs, especially the calyx; petals crowned, red or rose-color._ 4. S. Pennsylvánica, Michx. (WILD PINK.) Stems low (4--8´); root-leaves narrowly spatulate, nearly glabrous, tapering into hairy petioles; _stem-leaves_ (2 or 3 pairs) _lanceolate; flowers clustered_, short-stalked; calyx club-shaped; _petals wedge-form, slightly notched and eroded, pink_.--Gravelly places, E. New Eng. to N. Y., Ky., and southward. April--June. 5. S. Virgínica, L. (FIRE PINK. CATCHFLY.) Steins slender (1--2° high); _leaves thin, spatulate, or the upper oblong-lanceolate; flowers few and loosely cymose_, peduncled; calyx oblong-cylindrical, soon obconical; _petals oblong, 2-cleft, deep crimson_; the limb 1´ long.--Open woods, western N. Y. to Minn., and southward. June--Aug.