102 S AXIKHAGACE.E. (saxifrage family.) 



Jar, 1 -celled, with 3 parietal placental, many-seeded, loculioidally 3-valved at the 

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

 haves, and solitary terminal white flowers. 



1. L. spathulatlim, Ell. — (lose damp soil, Georgia (near Savannah) 

 and South Carolina. March and April. 



2. HEUCHERA, L. Alum-root. 



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

 spatulate. Stamens 5. Styles 2. Capsule 1-celled, 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. 



* Calyx equal-sided. 



1 . H. Americana, L. Rough-pubescent ; scape leafless ; leaves erenatel y 

 or acutely 7 - 9-lobed 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-lobed and toothed, panicle loose; flowers minute; petals 

 white, very narrow, about as long as the stamens; styles elongated. (II. eaules- 

 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 1 spatulate- 

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

 cauleseens, /3, Torr. <j- Gray ) — Buncombe County, North Carolina, Curtis. — 

 Flowers larger than the last. 



* * Calyx oblique, 



4. H. pubescens, Pursh. Glandular-puherulent; stem (2°) leafy : leaves 

 round-cordate, acutely 5 - 7Jobed and toothed, with the sinus closed; stipules 



obtuse, fringed ; flowers nodding ; calyx ovoid, yellowish-green, tl vate lobes 



obtuse; petals spatulate, white, and, like the smooth Btamens and Btyles, includ- 

 ed. — Mountains of North Carolina, and Dorthward. June and duly. 



5. H. hispida, Pursh. Hirsute or minutely glandular-pubesoenl ; 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 ox less exserted stamen'- ; Btyles at length much exserted. 



— High mountains of North Carolina. May and June. — Scape 2° -8° high, 

 so m et im es imoothish, as well as the nctiolos. Flowers larger than any of the 

 preceding, 



