5. A. Grœnlándica, Spreng. (MOUNTAIN S.) Densely tufted from slender roots, smooth; flowering stems filiform, erect (2--4´ high), few-flowered; _sepals oblong, obtuse, nerveless_.--Summit of the Shawangunk, Catskill, and Adirondack Mountains, N. Y., of the higher mountains of New Eng., and northward; alpine or subalpine. At Bath, Maine, on river-banks near the sea, and near Middletown, Ct. June--Aug.--Leaves and peduncles 3--6´´ long; flowers large in proportion. (Addendum)--Arenaria Grœnlandica. Found on Mt. Desert Island, Maine (_Rand_). § 3. MŒHRÍNGIA. _Parts of the flower sometimes in fours; pod as in § 1, but the young ovary 3-celled; seeds rather few, smooth, with a thickish appendage (strophiole) at the hilum; perennials, with flaccid broadish leaves._ 6. A. lateriflòra, L. Sparingly branched, erect, minutely pubescent; leaves oval or oblong, obtuse (½--1´ long); peduncles 2--(rarely 3--4) flowered, soon becoming lateral; sepals oblong, obtuse.--Gravelly shores, etc., New Eng. to Penn., Mo., Minn., and northward. May, June. (Eu.) § 4. AMMADÈNIA. _Styles, cells of the ovary, and valves of the fleshy pod 3, rarely 4 or 5; seeds few, smooth, short-beaked at the naked hilum; disk under the ovary more prominent than usual, glandular, 10-lobed; flowers almost sessile in the axils, sometimes diœcious or polygamous; root perennial._ 7. A. peploìdes, L. Stems (simple or forking from long rootstocks, 6--10´ high) and ovate partly-clasping leaves (8--10´´ long) very fleshy. (Honkenya peploides, _Ehrh._)--Sands of the sea-shore, N. J. to Maine and northward. June. (Eu.) 7. STELLÀRIA, L. CHICKWEED. STARWORT. Sepals 4--5. Petals 4--5, deeply 2-cleft, sometimes none. Stamens 8, 10, or fewer. Styles 3, rarely 4 or 5, opposite as many sepals. Pod ovoid, 1-celled, opening by twice as many valves as there are styles, several--many-seeded. Seeds naked.--Flowers (white) solitary or cymose, terminal, or appearing lateral by the prolongation of the stem from the upper axils. (Name from _stella_, a star, in allusion to the star-shaped flowers.) [*] _Stems spreading, flaccid, marked longitudinally with one or two pubescent lines; leaves ovate or oblong, ½--2½´ long._ S. MÈDIA, Smith. (COMMON CHICKWEED.) Annual or nearly so; _lower leaves on hairy petioles, petals shorter than the calyx_, 2-parted, stamens 3--10.--Everywhere in damp grounds. (Nat. from Eu.) 1. S. pùbera, Michx. (GREAT CHICKWEED.) Root perennial; _leaves all sessile; petals longer than the calyx_, deeply 2-cleft; stamens 10.--Shaded rocks, Penn. to Ind., and southward. May. [*][*] _Stems erect or spreading; wholly glabrous perennials, with sessile and narrow or small leaves; stamens usually 10, perigynous._ [+] _Scaly-bracted; petals 2-parted, equalling or surpassing the calyx._