6. S. Virginiénsis, Michx. (EARLY S.) Low (4--9´ high); _leaves obovate or oval-spatulate_, narrowed into a broad petiole, crenate-toothed, thickish; flowers in a clustered cyme, which is at length open and loosely panicled; lobes of the nearly free _calyx erect, not half the length of the oblong obtuse (white) petals_; follicles united merely at the base, divergent, purplish.--Exposed rocks and dry hillsides; N. Brunswick to Ga., and west to Minn., Ohio, and Tenn.; common, especially northward. April--June. 7. S. Pennsylvánica, L. (SWAMP S.) Large (1--2° high); _leaves oblanceolate, obscurely toothed_ (4--8´ long), narrowed at base into a short and broad petiole; cymes in a large oblong panicle, at first clustered; lobes of the nearly free _calyx recurved, about the length of the linear-lanceolate (greenish) small petals; filaments awl-shaped_, follicles at length divergent.--Bogs, N. Eng. to Va., west to Minn. and Iowa. 8. S. eròsa, Pursh. (LETTUCE S.) _Leaves oblong or oblanceolate, obtuse, sharply toothed_, tapering into a margined petiole (8--12´ long); scape slender (1--3° high); panicle elongated, loosely flowered; pedicels slender; _calyx reflexed, entirely free, nearly as long as the oval obtuse (white) petals; filaments club-shaped_; follicles nearly separate, diverging, _narrow, pointed_, 2--3´´ long.--Cold mountain brooks, Penn. to Va. and N. C. 9. S. Forbèsii, Vasey. Stem stout, 2--4° high; _leaves denticulate, oval to elongated oblong_ (4--8´ long); _filaments filiform; follicles short, ovate_; otherwise as in the last.--Shaded cliffs, near Makanda, S. Ill. (_Forbes_); E. Mo. (_Lettermann._) [+][+] _Petals unequal, with claws, white, all or some of them with a pair of yellow spots near the base; leaves oblong, wedge-shaped or spatulate; calyx free and reflexed._ 10. S. leucanthemifòlia, Michx. Leaves coarsely toothed or cut, tapering into a petiole; stems (5--18´ high) bearing one or more leaves or leafy bracts and a loose, spreading corymbose or paniculate cyme; _petals_ lanceolate, the _3 larger ones with a heart-shaped base_ and a pair of spots, the 2 smaller with a tapering base and no spots.--Mts. of Va. to N. C. and Ga. 11. S. stellàris, L., var comòsa, Willd. Leaves wedge-shaped, more or less toothed; scape (4--5´ high) bearing a small contracted panicle, many or most of the flowers changed into little tufts of green leaves, _petals all lanceolate and tapering into the claw_.--Mt. Katahdin, Maine, north to Lab. and Greenland. (Eu.) 3. BOYKÍNIA, Nutt. Calyx-tube top-shaped, coherent with the 2-celled and 2-beaked capsule. Stamens 5, as many as the deciduous petals, these mostly convolute in the bud. Otherwise as in Saxifraga.--Perennial herbs, with alternate palmately 5--7-lobed or cut petioled leaves, and white flowers in cymes. (Dedicated to the late _Dr. Boykin_ of Georgia.) 1. B. aconitifòlia, Nutt. Stem glandular (6--20´ high); leaves deeply 5--7-lobed.--Mountains of southwestern Va. to Ga. and Tenn. July.