502 SAXIFRAGACEAE 



cent near the margins: hypanthium turbinate, barely 1 mm. long during anthesis: 

 sepals broadly ovate, rounded at the apex: petals oblong or spatulate-oblong, much 

 surpassed by the sepals, acute or apiculate, entire. 

 In mountain woods, Georgia and Alabama. Spring. 



8. Heuchera lancipe~tala Rydb. Leaf -blades suborbicular or orbicular-reniform, 

 48 cm. wide, with shallow lobes and broad sharply mucronate teeth; glabrous except 

 the margins, and the veins beneath: flowering branches short-hirsute: sepals about as 

 long as the free portion of the hypanthium: petals white or pink, about 3 mm. long, 

 much exceeding the sepals, the blades oblanceolate to linear-elliptic, acute, entire. 



In woods, Kentucky and Tennessee.. Spring and summer. 



9. Heuchera Curtisii T. & G. Leaf -blades suborbicular, varying to ovate or 

 reniform, sometimes hispidulous above, and ciliate, the lobes broad and with few 

 coarse broad teeth : flowering branches glabrous below, puberulent above, leafy : petals 

 purple or pinkish, exceeding the sepals, the blades usually rhombic, finely toothed: 

 free portion of the mature hypanthium short. 



In rich woods, New York to North Carolina and Tennessee. Spring and summer. 

 A more leafy variety with the petals individually shorter than the sepals, is H. Curtisii 

 crenata Rydb. 



10. Heuchera pubscens Pursh. Leaf -blades orbicular-ovate, glabrate in age, 

 the lobes often ovate, with usually sharply mucronate teeth: flowering branches 

 densely glandular-puberulent at least above: sepals together with the hypanthium 6-8 

 mm. long, the lower ones ovate: petals purplish, the larger ones 2.5-3 mm. long, the 

 blades obovate, coarsely toothed: free portion of the mature hypanthium long: 

 stamens exserted. 



In woods, Pennsylvania to North Carolina, Missouri and Tennessee. Spring and 

 summer. 



11. Heuchera aceroides Rydb. Leaf -blades ovate, about 7-lobed, shining above, 

 puberulent beneath: flowering branches glabrous or glandular-puberulent above, 

 usually leafy: sepals together with the hypanthium 8-10 mm. long, the lower ones 

 oblong: petals pink, the larger ones 3.54 mm. long, the blades cuneate, toothed: free 

 portion of the mature hypanthium much longer than in H. pubescens. 



On hillsides, Western North Carolina. Spring. 



12. Heuchera hirsuticaulis (Wheelock) Rydb. Leaf -blades reniform or sub- 

 orbicular, with broad lobes, hirsute on both sides, except sometimes in age: flowering 

 branches hirsute: hypanthium together with the sepals 5-6 mm. long at maturity: 

 petals spatulate, about 2 mm. long, the upper ones shorter than the sepals: capsule- 

 body short. 



On shaded banks, Michigan to Missouri and Louisiana. Spring. 



13. Heuchera hispida Pursh. Leaf -blades reniform or orbicular-ovate, with 5-9 

 shallow lobes and broad teeth, hirsute beneath, and ciliate: flowering branches usually 

 densely hispid: hypanthium together with the sepals 8-11 mm. long: petals spatulate, 

 about 3 mm. long, the upper ones longer than the sepals: capsule-body elongated. 



In woods, Ontario to Saskatchewan, Virginia, Arkansas and Wyoming. Spring and 

 summer. 



14. Heuchera scabra Rydb. Leaf -blades ovate, 7-9-lobed, scabrous-puberulent 

 above, hirsute beneath: flowering branches glandular-puberulent, usually leafless: 

 hypanthium green, together with the sepals 9-10 mm. long; lower sepals narrowly 

 oblong: petals pinkish or purplish, the larger ones 4-5 mm. long, the blades spatulate. 



In woods, Western North Carolina. Summer. 



15. Heuchera longiflora Rydb. Leaf -blades orbicular-reniform to ovate, gla- 

 brous, except the margins and veins beneath, the lobes shallow and rounded: flowering 

 branches glabrous or glandular-pubescent above: hypanthium often reddish: lower 

 sepals oblong, together with the hypanthium 6-8 mm. long: petals yellowish, or 

 purple-tipped, the larger ones 4-4.5 mm. long, the blades orbicular or rhombic- 

 orbicular. 



On hillsides, Kentucky, Tennessee and Alabama. Spring. 



