592 SAXIFRAGACEAE x 
HEUCHERA L. Perennial herbs with lateral flowering branches. 
pur blades toothed and usually lobed. Flowers in. panicl 
S 
often unequal. Petals entire, erose or tooth Stamens 5: filaments elon- 
ate. Styles slender psule gradually narrowed into the slender elongate 
eak 70 species, North American. — ALUMROOTS 
CRAG-JANGLES.— The hypathium and calyx are green, pink, or red, and Hr 
veined; the petals are usually whitish or yellowish. 
Flowers essentially regular, the upper sepals sometimes larger than the lower 
Pe ea n S deae. M the calyx, with long very slender claws and long bi ades. 
lea rud ones, with low rounded lobes: panicle-branches 
filiform or capilla . MICRANTHAE. 
Leaves, at least dae "or er ones, with prominent angled 
lobes: panicle-branches slender II. VILLOSAE. 
ME shorter than the ealyx or slightly longer, with short 
tout claws and short blade III. AMERICANAE. 
Flowers decidedly irregular: calyx rum or 2- om . HISPIDAE 
Sepals acute or acuti, ovate, much orta. A the hy- 
panthium during anthesis : petioles villou 1. H. parviflora. 
ione obtuse, broadly ovate, as long as the hypanthium 
ring anthesis or nearly so: petioles puberulent. 2. H. puberula. 
II. VILLOSAE 
Terminal leaf-lobe elongate: petals, and filaments, thrice as 
long as the sepals or more 3. H. villosa. 
d E Epi: short and wide: petals, and filaments, 
twice as long as the sepals or less. 4. H. macrorhiza. 
III. AMERICANAE 
Petals as long as the calyx or shorter. 
Hypanthium fully 1 mm, long during D this to- 
ether with the calyx E 4-5 m lon b. H. americana. 
pecan barely 1 m ong quae "anthesis, this to- 
ether th the eal "om ming 3 m on 6. H. calycosa. 
Petals longer than the calyx, 2r individually shor 
Petal-blades narrow, entir flowering aN Jeanas, 7. H. lancipetala. 
Petal-blades broad, toothed: "flowering branches leafy. 8. H. Curtisii 
IV. HISPIDAE 
Pow pe leafy: free portion of the hypanthium 
ous 
Sepals of the upper lip about as long as the free portion of 
t anthium, the lateral ones not spreading. 9. H. pubescens. 
Sepals of the upper lip shorter than the free portion of the 
hypanthium, the lateral ones spreading. 10. H. aceroides. 
Flowering gin. es not leafy: free portion of the hypan- 
gibbou 
Anthers long-exser d: flowers short. 11. H. hirsuticaulis. 
BRE m or slightly exserted: ers long. 
Lower petals with spatulate blades, jones than the 
Ari Is. 12. H. scabra. 
Lower petals with orbicular or rhombic-orbicular 
blades, about as long as the sepals. 13. H. longiflora. 
arviflora Bartl. pd popes reni- 
1 ore or 
Low Plateaus, Ga. to Ala., Ill, and Va.— 
Sum.-fall. — Corolla usually whi te. 
2. H. puberu rula Mackenzie & Bush. Similar 
r .0-8 dm. 
ll, Peeks inflorescence branches 
