278 Order 31.— GERANIACKJ3. 



1 P. flavum Ait. Carrot-leaved Geranium. St. very simple ; lvs. decom- 

 pound, laeiniate, hairy, segoi. linear ; umbel many-flowered, fls. brownish-yellow. 



2 P. triste A. Mourning Geranium. Lvs. hairy, pinnate; Ifts. bipinnatifid, 

 divisions linear, acute; fls. dark-green, in simple umbels. 



3 P. odoratissimum A. Nutmeg-scented Geranium. St. velvety, short, 

 fleshy ; lvs. roundish, cordate, very soft; branches herbaceous, long, diffuse. — 

 Valued chiefly for the powerful, aromatic smell of the leaves, the flowers being 

 small whitish. 



4 P. alchemilloides A. Ladies' mantle Geranium. St. villous; lvs. 

 cordate, villous, 5-lobed, palmate : ped. few-flowered ; stig. sessile. — St. 6' high, 

 diffuse, very hairy, with deflexed bristles. Fls. pink-colored. 



5 P. tricolor B. St. suffruticous, erect; lvs. lanceolate, villous, cut-dentate, trifid; 

 upper pet. glandular at base. — St. ljf high. This species is distinguished for its 

 beautifully variegated fls. Petals roundish and nearly uniform in shape, but very 

 different in color; the three lower ones are white, slightly veined, the 2 upper 

 of a rich purple, almost black at base. 



6 P. coriandrifolium Jac. St. herbaceous, biennial, somewhat downy ; lvs. 

 bipinnale, smooth, lobes linear, subpinnatifid. — St. diffuse, 1 f high. Distinguished 

 by the finely divided leaves and large fls. The 2 upper petals much the largest, 

 obovate, veined with purple, the 3 lower, of which the middle one is often 

 wanting, are narrow and of pure white. 



7 P. glaucum L'Her. Very smooth and glaucous; lvs. lanceolate, entire, acu- 

 minate; ped. 1 — '1-flowered. — Sts. 3f high, shrubby and branched. The plant is 

 remarkably distinguished by its leaves. Ped. axillary, with 1 or 2 elegant flowers. 

 Petals obovate, of a delicate blush color with red veins. 



8 P. betulirmm A. Lvs. ovate, unequally serrate, smooihish ; stip. ovate- 

 lanceolate ; ped. 2 — i-flowered. — St. shrubby, 3f high. The plant is well named 

 for its leaves. Fls. pale-pink, with deep red veins. 



9 P. acetdsum A. Lvs. very smooth, obovate, crenate, somewhat fleshy ; ped. 

 few-flowered; petals linear. — St. shrubby, 3f high. Named for the acid flavor 

 of the leaves. Fls. pink. 



10 P. zonale L. Horse-shoe Geranium. Lvs. cordate-orbicular, obsoletely 

 lobed, toothed, marked with a concentric zone. — St. thick, shrubby, 2 — 3f high. 

 One of the most popular of all the species. The zone upon the leaf is of various 

 shades. Thefts, are of a bright scarlet, umbeled, on long peduncles. It has many 

 varieties, of which the most remarkable is 



y3. marginale ; silver-edged ; the leaves of which are bordered with white. 



11 P. inquinans A. Lvs. round, rent form, scarcely divided, crenate, viscid; 

 umbels many-flowed; petals obovate, crenate. — Justly admired for the vivid 

 scarlet of its numerous flowers. The name alludes to the reddish, clammy 

 moisture which stains the fingers in handling the soft, downy branches. 



12 P. peltatum A. Ivt-leaved Geranium. Lvs. 5-lobed, entire, fleshy, 

 smooth, more or less peltate ; umbels few-flowered. — St. climbing, several feet in 

 length. "Whole plant very smooth. A beautiful species, with umbels of very 

 handsome purplish flowers. 



13 P. tetragouum L'Her. Branches ^-cornered, fleshy; lvs. cordate, bluptly 

 lobed, somewhat toothed ; pet. 4, the upper ones pale-pink, with crimson veins, 

 the 2 lower small, white. — Lvs. small, rounded, notched, with scattered hairs. 



14 P. Watsdnii Link. Lvs. orbicular, cordate, somewhat lobed, crenate- 

 dentate, undulate at the margin ; stip. acute, cordate, and somewhat toothed. — 

 Fls. large, purple, variegated, several together. 



15 P. grandiflorum TV. Smooth, glaucous ; lvs. 5-lobed, palmated, cordate at 

 base, the lobes dentate toward the end ; petals 3 times as long as the calyx. — 

 Distinguished for the size and beauty of the flowers, which are white, the 2 upper 

 cnes elegantly veined, and tinged with red, larger than the rest. 



16 P. graveolena A. Hose-scented Geranium. Lvs. palmately 1 -lobed, 

 lobes oblong, bluntly toothed, revolute, and very rough at the edge; umbela 

 many-flowered, capitate. — Nectary about half as long as calyx. Lvs. very fra- 

 grant. Fls. purple. 



