152 SAXIFRAGACEJE. (SAXIFRAGE FAMILY.) 



lar, 1-coUcd, with 3 parietal placentEC, manyseedecl, loculicidally 3-valved at the 

 apex. — A very small (J' high) tufted annual herb, with alternate spatulate 

 leaves, and solitary terminal white flowers. 



1. L. spathulatum, Ell. — Close damp soil, Georgia (near Savannah) 

 and South Carolina. Mareh and April. 



2. HEUCHERA, L. Alum-root. 



Calyx campanitlate, coherent with the base of the ovary, 5-cleft. Petals .5, 

 spatulate. Stamens .5. Styles 2. Capsule 1-cellcd, with 2 parietal placenta;, 

 many-seeded, 2-beakcd, opening between the beaks. Seeds rough or hispid. — 

 Perennial herbs, with erect scape-like stems. Leaves chiefly radical, long-peti- 

 olcd, roundish cordate, lobed or toothed. Stipules adnate to the petioles. Flow- 

 ers cymose-panicled. 



* Cahjx equal-sided. 



1 . H. Amerioana, L. Rough-pubescent ; scape leafless ; leaves crenately 

 or acutely 7 - 9-lobcd and toothed, the teeth mucronate ; panicles long, narrow, 

 loosely-flowered ; calyx as long as the white spatulate petals, much shorter than 

 the stamens and very slender styles. — Shady rocky places in the middle and 

 upper districts, Mississippi to North Carolina, and northward. April and May. 



— Scape 2° -3° high, sometimes with one or two leaves. Leaves 2' -4' wide, 

 on petioles 4' -12' long. 



2. H. villosa, Michx Scape bracted or somewhat leafy, and, like the 

 petioles and lower surface of the leaves, shaggy with long spreading rusty hairs ; 

 leaves sharply 5 - 7-lobcd and toothed , panicle loose ; flowers minute ; petals 

 white, very narrow, about as long as the stamens ; styles elongated. ( H. caules- 

 cens, Pursh ) — Mountains of North Carolina and Tennessee. June and July. 



— Scape 1 ° - 3° high. Leaves 3' - 8' wide. Flowers about a line in length. 



3. H. Curtisii, Gray. Scape and petioles smooth; leaves slightly' lobed; 

 branches of the panicle long, racemose, spreading ; petals purple ' spatulate- 

 lanceolatc, scarcely longer than the calyx ; stamens slightly pubescent. (II. 

 c.aulescens, fi, Torr. ^- Gray ) — Buncombe County, North Carolina, Curtis. — 

 Flowers larger than the last, 



* * Calyx ohlique. 



4. H. putaeSOens, Pur.-h. Glandular-pubcrulent; stem (2°) leafy ; leaves 

 round-cordate, acutely b - 7-lobed and toothed, with the sinus closed ; stipules 

 obtuse, fringed ; flowers nodding ; calyx ovoid, yellowish-green, the ovate lobes 

 obtuse ; petals spatulate, white, and, like the smooth stamens and styles, includ- 

 ed. — Mountains of North Carolina, and northward. June and July. 



5. H. hispida, Pursh. Hirsute or minutely glandular-pubescent; leaves 

 5-9-lobed, the lobes short, rounded, and mucronately toothed; panicle con- 

 tracted ; the short branches few-flowered ; petals broadly spatulate, purple, rather 

 shorter than the more or less exserted stamens ; styles at length much exserted. 



— High mountains of North Carolina. May and June. — Scape 2° - 3° high, 

 sometimes sraoothish, as well as the netioles. Flowers larger than any of the 

 preceding. 



